[GEOS-5556] count=0 - WFS GetFeature
JSON WFS adding simple json mime type response handler (backward compatibility)
align and fix WFS JSON documentation
User Guide function ref - added endAngle, startAngle
GEOS-5606 works for Oracle sdk, but not for other sdks --> fixed
GEOS-5607 fixed exception throwed by nested layer group in Container mode
User Guide WMS Ref - fixed info_format GML types
User Guide SLD Ref Labeling - minor edits
User Guide SLD Extension - renamed Graphic Symbology, added links
doc: updated geoserver-manager link
documentation: layer group updates
remove stax as a dependency, it comes with the JDK since Java 6
Build fix - monitor parent pom now points to extension
JDK7: fixed VersionNegotiationTest
JDK7: fixed FeatureTimeTemplateTest
JDK7: fixed RenderingBufferTest
JDK7: fixed GlobalSettingsTest
Merge pull request #127 from svzdvd/GEOS-5619

GEOS-5619 JDK7 fixes
Merge pull request #123 from svzdvd/GEOS5607-groupcontainerbreakpreview

GEOS-5607 fixed exception throwed by nested layer group in Container mode
Merge pull request #124 from svzdvd/geos5548-documentation

Documentation