Merge pull request #600 from jirmauritz/notification

Notifications: logging of sent emails and fixed bug in removing regex from template
All changes from 'master' to 'production'
Use new oracle driver 12.1.0.2.0
Merge pull request #601 from zlamalp/oracle

Use new oracle driver 12.1.0.2.0
set gen task status to failure when exceptions are raised
propagate only to testing facilitites
Merge branch 'engineNewTesting' of https://github.com/mvocu/perun into engineNewTesting