do not run unit tests now

Issues with linking of library in a build environment

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[rpm] execute unit tests while building rpm

workaround, setting LD_LIBRARY_PATH to the statefs lib dir to avoid
issues occured in scratchbox

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[util] join() and split() for strings

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
invalidate tag on deletion

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[so] store library name

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>