Changed artist and song title in file name template to sort values instead
Fixed Tuning frequency import.
Added structured import for RS2014

+corrected album_art warning
+commented unused code in Fill from package
Separated preview audio from chart audio

Preview audio now got -3 instead
Its done to prevent low volume preview effect
Fixed some appids and added new ones
Added new config repository (start #74)
* Built-in .NET config don't help, because we need stored config accessible to all executables.
Added Auto-update feature (fixes #152)
* Update About form.
Fixed auto-update preventing toolkit to fast start (#152)
* Disable beta releases by default.
Pass commit to update url so button is only displayed for newer builds (#152)

Previously you'd get the button if you were running a test build, even if it was newer than the release build
Also added "update" property to json response for easy checking since previously it would be a blank object
Appid field fixed (#158)
Fixed auto-update issue with SharpZipLib file locked by another process;
* Some layout adjustments and new icon on Toolkit Auto Updater app;
* Change back beta releases by default until auto-update stil stable.
Added Python related gitignore

*for sngdiff utility
Try to fix auto-updater process lock definitelly (#152)
Change beta release by default again (until have not screen to manage config).
Enable automatic tone setup again.
Template option to disable tone overrides and load from chart.
Rebase and make overrides work in packer and autoload in GUI.
Connect autoload option to GUI control.
Use zero IV for SNG encryption (proposed fix for #112 #145)
Add empty tone slots to manifest when autoload is enabled.