first version that can create sessions and channels
fixed name
Refactor of certificate support; make it a first-class citizen.
source format
merged with develop version
Changed adaptor loading scheme to use lower case names for adaptors.
merged again
Merge pull request #4 from NLeSC/feature/ssh-adaptor

Feature/ssh adaptor
Merge remote-tracking branch 'origin/develop' into feature/mock_engine
Add tests which use mockito to mock.