Remove extra empty lines.
icu: Update to 54.1
blender: Update to 2.72a
Added new package: Libnotify
Merge pull request #276 from DoctorWho11/master

Added new package: Libnotify
mingw-w64-headers: Update. Add workaround to build Qt with removed legacy stuff from winpthreads.
oniguruma: Fix building shared libraries.
libnotify: Fix URL, format.
libxml2: Update to 2.9.2