CLOSED issue 49: Loading config-files should work on all machines 

Task-Url: https://github.com/gnudo/grecoman/issues/issue/49

ADD: automatic detection of computing location
MOD: simplified "checkOutputType" method
CLOSED - task 54: Allow for setting priority of jobs 
http://github.com/gnudo/grecoman/issues/issue/54

FIX: small bug in "checkOutputType" method
added small status-bar notification after job has been submitted
Merge branch 'development'