Reverting the `eoxs_id_list` output formating.

Each line of the `eoxs_id_list` output is expected to have following format:

<white-space-indent><object-identifier><space><object-class-name>
WPS: Fixing the `getTimeData` (time-slider) process.

Changes:
 - Missing output format argument of the `execute()` method.
 - The use of `text/plain`, although still used by the time-slider,
   is deprecated and should be replaced by the `text/csv`.
   Before this happens support for the `text/plain` legacy format
   is needed not to break the current EOxClient installations.
Fixing the replaced CLI commands and thier options.
Update development_installation.sh
Fixing the missing `Content-Length` header in the getCoverage resposes.

see issue #276
Merge branch '0.3' of github.com:EOxServer/eoxserver into 0.3
Expanding headers directly to a list of key value pairs, as it makes troubles when used as a lazy evaluated list. Somewhat related to #276.

(cherry picked from commit ef63a57eb1b8bc106edf2767728c7f280fbdb2a1)
Fixing missing check in referenceable dataset renderer.

(cherry picked from commit fdbc9da6e10e9253c88208d198ffc045bf2f3248)
Merge branch '0.4' of git+ssh://github.com/EOxServer/eoxserver into 0.4
CLI: Allowing loading of single range-type objects.
CLI: Fixing registration of the RectifiedDatasets.
Adding missing geometry check.
Fixing broken collection removal.
Adding GEOS version parsing patch.
Merge branch '0.3' into 0.4

Conflicts:
	autotest
	eoxserver/resources/coverages/crss.py
	eoxserver/services/mapserver.py
	eoxserver/services/ows/wcs/wcs20/getcov.py
Merge branch '0.4'

Conflicts:
	eoxserver/resources/coverages/crss.py
	eoxserver/resources/coverages/management/commands/eoxs_rangetype_load.py
Updating submodule.