Added Country and Date columns for Album
Make libdiscid support optional
Changed Retrieving Track message to include medium also
Use NULL pointer check instead of GTK_IS_TYPE
Toolbar buttons are disabled at the starting
Use et_music_brainz_dialog_clear

et_music_brainz_dialog_clear will unref and set dialog to NULL
Now IS_ET_MUSICBRAINZ_DIALOG check is not required
A few comments
Use g_return_if_fail() for checking GtkTreeModelFilter
Use default Release if given in Applying Tags

If Tracks are obtained from a parent Album
then use that Album's tag for Applying Tags
Give choices to user to select the Tag only
if there are more than one choice of Album Tags & Tracks are standalone
Show File Path in TagChoiceDialog
Fixed Memory leaks with mbentityview.c

free the string obtained from gtk_list_store_get_values
FIXME (split) Fixed memory leak in free_mb_tree_node

Added g_slice_free statements, don't know how it got deleted
ApplyTAGs also add Disc and Track Tags

Get Disc and Track tags from recording.
A recording contains Medium and Track information.
Use that information in et_mb5_recording_get_medium_track_for_release
Updated TagChoiceDialog to display Disc and Track tags
If there are more than one Disc and Track tags for recording then
display choices for them
Apply TAGs add Composer Tag

Use "artist-rels" to get Composer Tag.
If available Composer Tag will also be applied.
Use et_mb5_recording_get_composers to get all composers
Added comments to mb_search.c
Added comments in mbentityview.c
Added comments to musicbrainz_dialog.c
Changed Search ComboBoxText to Search Entry
Apply TAGs is insensitive at the beginning
Removed Up, Down and Search in treeView entry