Merge branches '1.4.6' and 'master' into 1.4.6
added support of logarithmic scale for real values in F7 menu
updated range for fly options using log scale
small changes to the Info mod
added base support for feature availability checking
added hook in NetServerHandler tick function
integration of feature detection into the ingame F7 menu
added missing class marker into EntityPlayerSP and EntityPlayerMP
added server tick hook
build mod partly rewritten, build extension working again
some broken features now marked as such
changes for 6.8.3