Initial commit! It works! - kind of....
add file edit dialog
Introduce musicdatamodel

The class MusicDataModel
will incorporate several roles.
First, it will act as a database and store the locations of the music
files. Secondly, it will subclass QAbstractTableModel so it can provide
data for the QTableView in the main window. And thirdly it
expands the pattern and makes use of taglib.
For the future it will hopefully provide plug-in support
for MusicBrainz....
Reduce doubled functionality from FileHandler class

MusicDataModel now does several things that FileHandler did
until now. These, like expanding the pattern, have been removed.
Introduce two-tabbed layout and adapt mainwindow class behaviour

This commit integrates MusicDataModel into the MainWindow class.
Make Table elements editable
Integrate sourcefile dialog into mainwindow
Fixed too much to say...
Make model sortable and introduce musicbrainz function
Modified UI to simplify usage, removed tabbed interface
This commit introduces single line completion capability!

A delegate for editing table items that allows the display
of a completion list of tags for a selected cell is added.
Also the UI is now simplified and the road for adding the
capability to edit multiple tags at once paved.
Show notification when MusicBrainz list is empty or error occured
Removed table delegate and musicbrainz line edit

Musicbrainz support will be introduced in a different form
Removed MusicBrainz Delegates and Lineedits from code

added some notifications and cleaned up the way for adding
file to the database. also updated the ui to give the user
the last bit of information by displaying the filename itself.
Introduce audio fingerprinting capability

known bug: can't finperint wma-files
and also the code is one hell of a PITA
Upgrade to Qt 5.0!

And introduce base for autotagging capability
Fix typo
Fixed wrong return value that made the ui display false information
Fix display of correct version information in authordialog
removed libmusicbrainz as dependency - libchromaprint does the job!