Doc for CSV outputFormat with app-schema.
GEOS-6218: CSV output format support for complex features with SF0
schema.
GEOS-6218: CSV output format test.
Added dependencies for CSV outputFormat test to app-schema online tests.

Conflicts:
	src/extension/app-schema/app-schema-oracle-test/pom.xml
Merge pull request #437 from riniangreani/2.4.x

GEOS-6218: CSV outputformat support for SF0 with app-schema.
GEOS-6258 - Not considering http error codes < 400 as an error.

Patch provided by Rob Marianski.
[GEOS-6243]:EmptyMosaic: REST APIs support
make application context for test framework more consistent with runtime

backport of #441.
Dont' use printstacktrace, use logging as the TODO says...
[GEOS-6171] 'Disk used' to say 'N/A' when quota off
Added documentation for importer module.
GEOS-6290: graduating dxf to extension on 2.4.x
GEOS-6290: removed old files not needed
Speep up epsg lookup, thus boosting significantly the tests (but also normal operation)

Backport of #460.
[GEOS-6301] kml module is missing from source zip release file
GEOS-6298] Build failure in gs-importer CSVDataStoreTest caused by bad URL<->File conversion
Migrated app-schema WMS tests to PNG
Merge pull request #457 from mbarto/24x_dxf_extension

GEOS-6290: graduating dxf to extension on 2.4.x
Backporting png generation fixes from trunk
[GEOS-6294] Graduate the importer module to extension status.

Conflicts:
	src/extension/importer/core/src/test/java/org/geoserver/importer/MemoryImportStoreTest.java
	src/extension/importer/pom.xml
	src/extension/pom.xml
	src/pom.xml
	src/release/pom.xml