fix builds with gcc 4.6.3

disable spurious warnings (unused-but-set-variable, unused-variable) and
fix accurate ones (sign-compare)
fix packaging
ctest: added switch to force continuoud-build
Added script for running Continuous-builds
Small cleanups
Added check for compiler and compiler version
Update packaging information
update on packaging
Merged with development branch
Merge remote-tracking branch 'origin/kk-dev' into development
lower required libc version
Fixed packagename
ctest: use /usr as install prefix (packaging), and do local install separatly
ctest: use variable for cmake instead of cmake directly
Merge remote-tracking branch 'origin/development' into kk-dev
merged ew-dev into kk-dev