This commit add support to projection and grid transformations using the CTS library.
Because it's an important change in GDMS I have updated the version in the pom.
Merge origin/master into orbisgis_cts
Update README.md
Refactor LegendsPanel (especially the init method)

Hopefully it is a little easier to understand now.
Oops, I actually needed these methods.

Even though Netbeans finds nothing when I run a "Find usages", these
methods are called by PropertyChangeListeners.

TODO: Find these usages.
Refactor panel methods; move layer tag.

Refactor panel methods to better see the structure of how panels are
added to the card layout. Also put the layer tag centered above the
dialog on the east side -- it is more visible this way.

TODO: Change the layout manager to avoid overlapping. Maybe
GridBagLayout?
Small code reorganization
Rm EPLegendHelper; convert init --> Constructor

The only static method in EPLegendHelper had only one usage, so we just
include it in the LegendsPanel class. Also, it made no sense to me to
use an init method rather than a constructor in LegendsPanel, so I make
this change.
Small cleanup
Initial format of LegendTree
Fix documentation and other PR comments.
I have only fixed the comments related to CTS integration because the new GDMS (h2 GIS)  will fix automatically the rest ;-)
Split crs tests
Fix javadoc
Fix javadoc
Fix getAsString
Merge pull request #433 from agueganno/first-part-categorize

Interval classification - First part : categorize refactoring
Use a GridBagLayout to fix resize issues.
Small fix
Fix CRS tests due to CTS changes
Rename LegendsPanel -> SimpleStyleEditor

LegendsPanel contains the UI for the Simple Style Editor. It seemed
logical to rename it to correspond.