Ignoring NetBeans project properties.
Do not unnecessary resolve jreWin and jreMac.
Added a guide to develop in NetBeans.
Merge pull request #319 from kelemen/ide-support

Better NetBeans integration
Updates Release notes for 5.0.2
Updates update location to start a new update train.
Prepares 5.0.2 to notify people of "no further updates".
Updates to Jaxen 1.1.4 to enable build
Merges changes for 5.0.2
Prepares release of 5.1.0
Merges changes for v5.1.0 from branch 'master' into Anathema3

Conflicts:
	build.gradle