Added job submission to GridEngine adaptor
Merge branch 'develop' into feature/sge-adaptor
finished (very basic) grid adaptor
Merge remote-tracking branch 'origin/develop' into feature/sge-adaptor
Merge remote-tracking branch 'origin/develop' into feature/sge-adaptor
Use sandbox in test.
New Generic File Integration Test. 
Tests basic FileSystem manipulations.
Added JavaDoc to most of files package. Some issues left.
Merge pull request #27 from NLeSC/feature/SandboxedLocalJobIT

Use sandbox in submit job test.
Merge pull request #29 from NLeSC/feature/ssh-adaptor-3

Feature/ssh adaptor 3
Fixed small issue in GridEngineJobs
Added hasDetachedJobs and hasLocalStandardStreams to Scheduler.
Added AbsolutePathIterator
Fixed RelativePath iterator.
Added resolve root path.
Added javadoc to certificates.
Fixed Scheduler close for local adaptor.
Merge pull request #30 from NLeSC/feature/generic_filetest

Feature/generic filetest
Merge pull request #31 from NLeSC/feature/ssh-adaptor-3

Feature/ssh adaptor 3
Throw a detailed Exception if possible.