Tweaked fortran Makefile.am to hopefully avoid dependency problems on parallel make

Made xraylib.mod depend on libxrlf03 - not sure if this is the correct way to do it
Merge branch 'fortrandeps' of github.com:chatcannon/xraylib into chatcannon-fortrandeps
restored parallel build support for java and php bindings
perl support restored on linux
exec bits removed from perl and python examples