adding NestedSet Model, and updated SQL
cleaning
First public release
Correct CHANGELOG
Remove unwanted installation instructions from README
Add functionnal move ('into' only) method
Finalize toArray() method
add UnitTest env and rename some classes
Add function to get the number of descendant of an element
Merge git@github.com:fpietka/Zend-Nested-Set
Changed __construct() to use Zend mapper object properties. Corrected a bug in the add() function when adding an element into another one. Finished the  toXml() method. Added a isRoot() method.
Add email and updated Zend version to the one I'm using
Merge branch 'master' of github.com:fpietka/Zend-Nested-Set

Conflicts:
	README
	library/Nestedset/Model.php