Fix a regression related refactoring recordingTrackId management.

In particular:
1) Add a workaround to {start/end}Recording to update recordingTrackId to trigger a notification
2) Add a bunch of unit tests for MyTracks
3) Clear minor style issues in a few classes

MyTracksTest/default.properties

@@ -0,0 +1,13 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Indicates whether an apk should be generated for each density.
+split.density=false
+# Project target.
+target=Google Inc.:Google APIs:8