Setting compiler encoding to UTF-8.
Added profile to enable new Boundless maven repository
Merge pull request #263 from jdeolive/compile-encoding

Setting compiler encoding to UTF-8.
Replacing opengeo repo with boundless repo
Updated release notes for 1.6.0-RC1
Setting version to 1.6.0-RC1
Revert "Setting version to 1.6.0-RC1"

This reverts commit d1870e477ab3995858f624e1e4b04e0ba72b2b8c.