- some fixing for cmake 3
- compile with WIN32_LEAN_AND_MEAN
- fix compilation with qt5 on windows, thanks to d00p for the transparency fix
- some work on windows resource files (still in progress)

git-svn-id: https://svn.kvirc.de/svn/trunk/kvirc@6370 17fca916-40b9-46aa-a4ea-0a15b648b75c
- bump to QT 4.7 (we have no QT 4.8 specific code)
- QT4 on MSVC still needs qtmain, the cmake policy does not apply there
- fix perl on windows, remove activestate hack, we don't support that anymore

git-svn-id: https://svn.kvirc.de/svn/trunk/kvirc@6371 17fca916-40b9-46aa-a4ea-0a15b648b75c