Automation: AudacityCommand

This is a squash of 50 commits.

This merges the capabilities of BatchCommands and Effects using a new
AudacityCommand class.  AudacityCommand provides one function to specify the
parameters, and then we leverage that one function in automation, whether by chains,
mod-script-pipe or (future) Nyquist.

- Now have AudacityCommand which is using the same mechanism as Effect
- Has configurable parameters
- Has data-entry GUI (built using shuttle GUI)
- Registers with PluginManager.
- Menu commands now provided in chains, and to python batch.
   - Tested with Zoom Toggle.

- ShuttleParams now can set, get, set defaults, validate and specify
the parameters.
- Bugfix: Don't overwrite values with defaults first time out.
- Add DefineParams function for all built-in effects.
- Extend CommandContext to carry output channels for results.

We abuse EffectsManager.  It handles both Effects and
AudacityCommands now.  In time an Effect should become a special case of
AudacityCommand and we'll split and rename the EffectManager class.

- Don't use 'default' as a parameter name.
- Massive renaming for CommandDefinitionInterface
- EffectIdentInterface becomes EffectDefinitionInterface
- EffectAutomationParameters becomes CommandAutomationParameters
- PluginType is now a bit field.

This way we can search for related types at the same time.

- Most old batch commands made into AudacityCommands.
The ones that weren't are for a reason.  They are used by mod-script-pipe
to carry commands and responses across from a non-GUI thread to the GUI
thread.

- Major tidy up of ScreenshotCommand
- Reworking of SelectCommand
- GetPreferenceCommand and SetPreferenceCommand
- GetTrackInfo and SetTrackInfo
- GetInfoCommand
- Help, Open, Save, Import and Export commands.
- Removed obsolete commands ExecMenu, GetProjectInfo and SetProjectInfo
  which are now better handled by other commands.

- JSONify "GetInfo: Commands" output, i.e. commas in the right places.

- General work on better Doxygen.
    - Lyrics -> LyricsPanel
    - Meter -> MeterPanel
- Updated Linux makefile.
- Scripting commands added into Extra menu.
- Distinct names for previously duplicated find-clipping parameters.
- Fixed longstanding error with erroneous status field number which
  previously caused an ASSERT in debug.
- Sensible formatting of numbers in Chains, 0.1 not 0.1000000000137

lib-src/FileDialog/FileDialog.h

@@ -21,7 +21,11 @@ custom controls.
 #include <wx/filectrl.h>
 #include <wx/filedlg.h>
 
-class FileDialogBase : public wxFileDialogBase
+#ifndef AUDACITY_DLL_API
+#define AUDACITY_DLL_API
+#endif
+
+class AUDACITY_DLL_API FileDialogBase : public wxFileDialogBase
 {
 public:
    FileDialogBase();

lib-src/FileDialog/win/FileDialogPrivate.h

@@ -22,7 +22,7 @@
 // FileDialog
 //-------------------------------------------------------------------------
 
-class FileDialog : public FileDialogBase
+class AUDACITY_DLL_API FileDialog : public FileDialogBase
 {
  public:
     FileDialog();

lib-src/Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.15 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2014 Free Software Foundation, Inc.
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -14,17 +14,7 @@
 
 @SET_MAKE@
 VPATH = @srcdir@
-am__is_gnu_make = { \
-  if test -z '$(MAKELEVEL)'; then \
-    false; \
-  elif test -n '$(MAKE_HOST)'; then \
-    true; \
-  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
-    true; \
-  else \
-    false; \
-  fi; \
-}
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
 am__make_running_with_option = \
   case $${target_option-} in \
       ?) ;; \
@@ -87,6 +77,9 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
+DIST_COMMON = $(srcdir)/dist-libsoxr.mk $(srcdir)/dist-libvamp.mk \
+	$(srcdir)/dist-portaudio.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am
 @USE_LOCAL_EXPAT_TRUE@am__append_1 = expat
 @USE_LOCAL_LIBID3TAG_TRUE@am__append_2 = libid3tag
 @USE_LOCAL_LIBMAD_TRUE@am__append_3 = libmad
@@ -149,7 +142,6 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/ac_c99_func_lrint.m4 \
 	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
-DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/src/configwin.h \
 	$(top_builddir)/src/configunix.h
@@ -209,8 +201,6 @@ am__define_uniq_tagged_files = \
   done | $(am__uniquify_input)`
 ETAGS = etags
 CTAGS = ctags
-am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/dist-libsoxr.mk \
-	$(srcdir)/dist-libvamp.mk $(srcdir)/dist-portaudio.mk
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 am__relativize = \
   dir0=`pwd`; \
@@ -978,6 +968,7 @@ $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/di
 	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib-src/Makefile'; \
 	$(am__cd) $(top_srcdir) && \
 	  $(AUTOMAKE) --foreign lib-src/Makefile
+.PRECIOUS: Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
@@ -986,7 +977,7 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
 	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
 	esac;
-$(srcdir)/dist-libsoxr.mk $(srcdir)/dist-libvamp.mk $(srcdir)/dist-portaudio.mk $(am__empty):
+$(srcdir)/dist-libsoxr.mk $(srcdir)/dist-libvamp.mk $(srcdir)/dist-portaudio.mk:
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
@@ -1254,8 +1245,6 @@ uninstall-am:
 	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
 	ps ps-am tags tags-am uninstall uninstall-am
 
-.PRECIOUS: Makefile
-
 
 # Overwrite install* targets from automake. We do not want to install anything
 # from the lib-src libraries, because we statically link these libraries.