Unbreak and reactivate the some UpdateChecker tests
Get rid of some obsolete functions
Small fix for stale files getting stuck in the cache
Do not use the java checker during instance update
Fix FTB.

Add support of private packs.
Fix instance ID problems related to FTB instances.
Sort forge versions right. Do not spam the multimc log with mc server status stuff.
Improve Console window output.
-> Log Pre- and Post-Launch command happenings
-> Enable the java part to specify the level

TODO: fix logging with mc 1.7's log4j logging infrastructure

Signed-off-by: Orochimarufan <orochimarufan.x3@gmail.com>
Change the native extraction/loading logic.
Fix settings dialog when offline
Marginally improve OneSix offline mode launch

While reconstructing assets, skip files that don't exist.
Report missing OneSix native libraries.
Fix derp: there is no static QFileInfo::exists in Qt 5.1.1
DERP DERP DERP

DERP ALERT. DUCK AND COVER!
Merge branch 'fix_tests' of https://github.com/02JanDal/MultiMC5 into develop
Force using LF endlines while configuring tests
Try to improve status arrows a bit