osx build: remove that dir too from non osx installs.
Merge pull request #1214 from monkeyiq/2014feb/osxSecureInputbox

osx build: remove that dir too from non osx installs.
Update description and use travis icon of my own repo
Drop outdated packaging stuff

Packaging files for Red Hat, Debian and VMS are vastly outdated,
refer to 20120731 (Linux) or 2008 (VMS) status of FontForge, and thus no
more useful for newer FF.
Fix missing EXTRA_DIST
Merge remote branch 'upstream/master'