run.sh: add runtime lib dir t path

we should put scripts and at runtime needed binaries in the runtime libdir, not in a global bin dir
cmake: move bittest and crashdlg into runtime lib dir

these are never called outside desurium, so they should be in the runtime lib dir
usercore: user findlib.sh to find installed libs

fixes #370
implement "check" (make check) into build_desura.sh
build_desura.sh: make check: fix argument passing
build_desura.sh: make check: don't run ./src/tests/UtilLinux_test separately.
Merge pull request #422 from matthiaskrgr/check

implement "check" (make check) into build_desura.sh
cef: remove stuff depends on wxWidgets
cmake: cef doesn't depend on wx anymore
Merge pull request #421 from karolherbst/bug370

add findlib.sh
Merge pull request #425 from karolherbst/bug423_up

cef: drop wxWidgets dependency
Update CHANGELOG

add notes about listed issues
cmake: add options to force bundled wxGTK
ebuild: drop wxWidgets dependency from cef
ebuild: add bundled-wxgtk USE flag
Merge pull request #429 from karolherbst/bug423

add option to bundle wxGTK, also updating ebuilds