Minor modification to OSX bundle-making script.

Chiefly, I decided to just fall in line and only use Frameworks where they are provided by the OS itself. Also, changed BUILD_TYPE from "Debug" to "RelWithDebInfo"
Fix window-height stepping.

This is not really visible to the user, but a stepping of "16" in height produced some very weird resolutions.
Add some stuff to .gitignore

Added OSX's "performous-app-build.sh" products to .gitignore.
Merge branch 'master' of https://github.com/performous/performous
Enable tools by default in mac bundling script.
Re-enable GH4 drum kit, with hat mapping. Needs testing because I don't have the hardware.
Version number bumped to 1.0. Now build packages and test as per https://github.com/performous/performous/wiki/Release-process
Smaller fixes to NSIS installer.

- Try to use MXE windres if in path
- Delete songs directory on uninstall (if empty)
- Fix path for ConfigureSongDirectory.bat (SetOutPath)
- Make uninstall information a bit nicer
- Refactor repeated path replacement stuff
- Only write one registry key
ignore: fix typo in playlist help string
fix: update French translations
Better XML Gettext tool.

Translators: Please update PoEdit configuration.
ignore: fix comment in French po file using latest XML script
Update FI translation.
Update window dimensions to config on resize.
Switch to using svg in regular and golden note highlights.

"Works for me" fix for white box highlights in band and duet mode.
Update German translation.
Tweak FI translation.
ignore: fix includes and reorder them
added center channel suppressor
Merge branch 'master' into webserver