Ignore netbeans and IDEA projects files.
Respect the ${srcdir} property for all source file references in ant script.

This makes it possible to restructure the build (in the future?) so that source and artifact files (.java and .class) are not intermingled in the same directories on disk.
Merged respect_ant_srcdir and fullxa branches into our master branch.

Merge remote-tracking branch 'origin/fullxa'

Conflicts:
	build.xml
Merge pull request #64 from polarislabs/respect_ant_srcdir

Respect ant srcdir
Merge remote-tracking branch 'upstream/master'