Fixed old bug in MTOverrideCursor.

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #52 from FellowTraveler/master

Fixed old bug in MTOverrideCursor.
update qjsonrpc
not working, rework build system
not working, first rearange
more work
now building on mac
build_dir_fix
now with pre-compiled headders
added some unix instructions
fixed pre-compiled headders
fixed pkg-config bug on mac
boost compile support, optional