added a new location for the atomic data.
Merge pull request #200 from wkerzendorf/testing/fix_travis_moria

added a new location for the atomic data.
a warning was added to the model.py indicating that no packet has left the simulation through the outer boundary.
changed the logger event "No r-packet escaped through the outer boundary." from warning to critical
Merge pull request #201 from mklauser/fix189

A critical warning was added to the model indicating that no packet has left the simulation through the outer boundary.
added various bug reporting techniques
added the reporting bugs website
a problem with the bibtex file if one does not specify encoding utf8
Merge pull request #203 from wkerzendorf/docs/reporting_bugs

Docs/reporting bugs