Add Ctrl Equals to zoom in keyboard shortcuts
fixed some compiler warning
windows default to Qt-5.2
Updated translations from pootle server
Updated translations after lupdate
dxfrw: fixed crash when saving a block
dxfrw: fixes for possible memory leak
Remove g++4.6 from the list of compilers

Does not build with it anymore.
Add various core filename patterns
Add core patterns to CLEAN.SH as well
dxfrw: more fixing for potential memory leak
Merge pull request #425 from NHellFire/keyboard-shortcuts

Add Ctrl Equals to zoom in keyboard shortcuts
dxfrw: leader based on unique_ptr
Clean up FreeBSD build a bit.

Signed-off-by: Tamas TEVESZ <ice@extreme.hu>
Merge branch 'master' of github.com:LibreCAD/LibreCAD
cleanup for debugging messages