Merge pull request #11 from pvuorela/master

[mkcal] fix build with no previous installation existing
Merge pull request #12 from pvuorela/master

[mkcal] Fix ExtendedCalendar::rawExpandedEvents() to return all events b...
[mkcal] Remove support for Qt4
[mkcal] Remove obsolete debian directory
[mkcal] Remove obsolete CMakeList.txt