Modularize the qt5 build to not rely on a huge mega-repo with submodules.

git-svn-id: https://rebeccablackos.svn.sourceforge.net/svnroot/rebeccablackos@2837 56e3d1a8-0179-4092-b3e2-9fbbcda0c0a9
Fix the build order of qt5 modules

git-svn-id: https://rebeccablackos.svn.sourceforge.net/svnroot/rebeccablackos@2838 56e3d1a8-0179-4092-b3e2-9fbbcda0c0a9
Add a qt5 dependancy for ktexteditor


git-svn-id: https://rebeccablackos.svn.sourceforge.net/svnroot/rebeccablackos@2839 56e3d1a8-0179-4092-b3e2-9fbbcda0c0a9