support for opaque WMS layers
scaleHint computation for wms 1.1.1
standard pixel converted to meters
fixing test cases for capabilities' scalehint
scale denomentator computation for wms 1.3.0
Added WMS scalehint units per pixel checkbox. When selected the scalehint is in units per pixel instead of scaledenominator.
When 'Scalehint Units per Pixel' is configured for the WMS, Compute the scale hint with a pixel size of 0.28mm x 0.28mm.
Otherwise use the min/max denominator as schalehint.
Reverted change: For wms 1.3.0 always use the scaledenominators and don't compute the units per pixel(0.28mm * 0.28mm).
wms 1.1.1 scalehint != 1.3.0 scaledenominators.
Completed the unit tests with tests for 'Scalehint in units per diagonal pixel' and as denominators.
remove start main class
updated unit test comments
updated propertie files and added properties for dutch language.
removed 'tabs' for spaces
Add option to override expire clients for tile layer
Update IpBlacklistFilter.java

key: GEOS-6037 and GEOS-6040
Support CSW requests with different types in query and in outputschema.
Handmade merge with http://jira.codehaus.org/browse/GEOS-6020
Merge branch 'master' into expireClients
Adding NetCDF community module to support NetCDF input coverages
Merge pull request #346 from geosolutions-it/netcdf-pullrequest

Adding NetCDF community module to support NetCDF input coverages