install-deps.sh: arch linux: we need libx11.
Merge pull request #464 from matthiaskrgr/install_deps

install-deps.sh: arch linux: we need libx11.
PKGBUILDS: git / release/desurium : add libx11 as dependency.
PKGBUILD: release:  bump version to 0.8.0_rc7.
PKGBUILDs: git / release cef : changeepackage description.
Merge pull request #465 from matthiaskrgr/PKGBUILD

Pkgbuild
cmake: add -Wl,--as-needed linker flag
npwrapper: add missing dependencies, also reorder a bit
cmake: remove -lpthread from linker_flags

also link against CMAKE_THREAD_LIBS_INIT where missing

cmake: link crashuploader against thread libs

cmake: add some more linker libs

cmake: link webcore against thread lib
cmake: OpenSSL is only required if we build curl