Merge pull request #260 from EOxServer/master

BaseParameter bugfix.
Id2Path: Allow access to the id2path interface from anywhere in the debug mode.
Id2Path: Changing the views to display the path item labels.
General cleanup. Fixing error reporting when XML error responses are generated.
Fixing CRS/SRS checking and error reporting.
Fixing (multipart) output generation.
Deactivating buggy SLD support for the moment.
Updating autotest.
Merge branch 'master' of git+ssh://github.com/EOxServer/eoxserver
Fixing backend and coverage tests.
Fix for bug in Django 1.4: aggregate functions returned strings instead of datetimes.
Fix for metadata reader updates.
Disabling binary comparison on Travis since Ubuntu is not the reference platform.
Adjusting jenkins tests.
Fixing tests: DatasetSeries are only saving the bounding box and not a cascaded union of the entailed footprints.
Merge branch 'master' of git+ssh://github.com/EOxServer/eoxserver
Trying different strategy for autotest submodule in jenkins.
Trying new travis config.
Updated autotest.
Trying travis setup.