Merge pull request #9 from tproc12/master

Fix return string problem from qstat in e18 module.
Cosmetics.

Remove an unnecessary check if stderr is None, as runCommand returns an empty
string if stderr is empty.
Merge pull request #10 from legordian/master

Cosmetics.
Fix issue #6.

Fix issue #6 by checking the job name for special characters on the top level
and removing all code handling such cases from the submodules.
Merge pull request #11 from legordian/whitespaceInJobnames

Fix issue #6.