playlist is now 1 down in menu, instead of 4 up

this way it isn´t activated by default but it tell´s the user that it is
actually there.
Merge branch 'master' of https://github.com/performous/performous
Quick_exit causes compile error under MinGW.
Fix some warnings.
Update MXE script.

Features horrible hacks, but is able to compile static performous.exe.
Exe crashes on start up under wine.
Tweak MXE scripts.
Fix error.
Use capitalized exe name on Windows.
Ran cpp11-migrate on game/*.cc.

- Most of the work done automatically by the tool
- Headers are not touched by the tool
- Manual review of all changes, additional cleanup by hand
- Miscellaneous other changes such as const-correctness fixes
- Mic pass-through no longer assumes (hard-coded) 48 kHz output
- Removed song preloading hack (breaks cover flashing in song browser)
- It still compiles, let's ship it!
Change songmenu navigation help.
Fix missing first syllable bug. Re-enable flashing cover in songs screen.

- Quickly hacked forced full loading together with hacky way of skipping headers caused the first line of TXT notes to be skipped
- Notes of the currently chosen song need to be loaded (now with NULL-check to avoid crash)
- Cover is flashing in menu position 1 (cover browser), not in 0 (playlist)
- Needs more testing; the song parsing / note dropping and all of that is too full of hacks...
Display current playlist on song selector. Flashing when selected. 3D for stereo3d.

- Increased cached covers count to 50 so that things don't get broken so quickly
- The number of songs on playlist, or at least the number of those covers rendered, needs to be limited to about 30
Rework playlist navigation.

- Songs are added without popup menu
- Playlist is not cleared even when exiting the song browser
- Jukebox adds current song and starts playback on start (it was broken, didn't do anything)
- Quiting song returns to song browser (rest of the playlist is preserved)
- Selection is always returned to cover browser after playlist menu actions
Merge branch 'master' into torrent