Add documentation how to add a new adaptor to the build chain.

Simplify inclusion of *.class/*.java files from adaptors for test coverage.
Moved Eclipse Java Formatter and clean Up xml files to https://github.com/NLeSC/wiki/wiki/Eclipe .
Merge remote-tracking branch 'origin/develop' into feature/document_adding_adaptor
Update adding_adaptor.md

Replaced ' with `.
Almost complete overhaul of API. Should be almost OK now...
Merge branch 'develop' of ssh://git@github.com/NLeSC/octopus.git into develop
Fixed most bugs in test classes.
Added isLocal to path.
Disabled FilesEnginesTest
Merge pull request #8 from NLeSC/feature/document_adding_adaptor

Document adding adaptor
Merge remote-tracking branch 'origin/develop' into feature/rename_test_package