Attempt #2 at taming the meter toolbars

It corrects several "multiple project" problems with the
meter toolbars and meters.

In addition, there was a "multiple project" issue where
the transport buttons didn't disable properly in the
non-active project.

src/toolbars/MeterToolBar.cpp

@@ -90,7 +90,8 @@ void MeterToolBar::Populate()
    if( mWhichMeters & kWithRecordMeter ){
       //JKC: Record on left, playback on right.  Left to right flow
       //(maybe we should do it differently for Arabic language :-)  )
-      mRecordMeter = new Meter( this,
+      mRecordMeter = new Meter( mProject,
+                                this,
                                 wxID_ANY,
                                 true,
                                 wxDefaultPosition,
@@ -105,7 +106,8 @@ void MeterToolBar::Populate()
    }
 
    if( mWhichMeters & kWithPlayMeter ){
-      mPlayMeter = new Meter( this,
+      mPlayMeter = new Meter( mProject,
+                              this,
                               wxID_ANY,
                               false,
                               wxDefaultPosition,

src/toolbars/ToolBar.h

@@ -66,8 +66,8 @@ enum
    TransportBarID,
    ToolsBarID,
    MeterBarID,
-   PlayMeterBarID,         // RecorderMeterBarID should be after PlayMeterBarID
-   RecordMeterBarID,       // to ensure proper meter style setup during initialization
+   RecordMeterBarID,
+   PlayMeterBarID,
    MixerBarID,
    EditBarID,
    TranscriptionBarID,