gr-air-modes: missing dep on boost

git-svn-id: http://pentoo.googlecode.com/svn@6188 04556701-5d27-2e10-b29c-201e0903c0fa
wiki: page GettingStarted update +2014.0_RC3.6

git-svn-id: http://pentoo.googlecode.com/svn@6189 04556701-5d27-2e10-b29c-201e0903c0fa