usercore: add Path to created desktop files

fixes #511

NOTE: this is a candidate for the stable branch
Merge pull request #512 from karolherbst/bug511

usercore: add Path to created desktop files
ebuild: drop flash support and build with h.264 support
ebuild: tidy up cef ebuild a bit
ebuild: use python eclass for cef
ebuild: pass AR to the build
ebuild: add desurium-meta and remove gamedeps from desurium
ebuild: pass AR to the build
ebuild: rework bundled-wxgtk handling
version: note #511 fix in changelog
ebuild: tidy up desurium a bit
CONFIGURE: pass correct toolchain values to chromium build

also set V=1 which forces verbose build output, respect MAKEOPTS and
MAKE/CMAKE_BUILD_TOOL instead of hardcoded "make"

fixes #389

NOTE: this is a candidate for the stable branches

v2: add fixes and NOTE
cmake: build cef in jobserver mode

fixes #415

also lower cmake version requiernemt to 2.8.2

NOTE: this is a candidate for the stable branches

v2: remove include of ProcessorCount
findlib.sh: improvements

posix compliance, use ldconfig to get additional LIBDIRS,
also respect LIBDIRS env variable
Merge pull request #519 from karolherbst/ebuild

many ebuild changes
Merge pull request #517 from karolherbst/cef_improvements

Cef improvements
version: note #389 and #415 fix in changelog
Merge pull request #520 from karolherbst/findlib

findlib.sh: improvements