Fixed .gitignore for mains in root
Merge pull request #1243 from jemc/master

Problem: qt-android build doesn't fully work for downstream builds
Fix typo: addres -> address
Fix typo: endpoind -> endpoint
Merge pull request #1244 from johntconklin/master

Fix typo: addres -> address
Problem: zmq_ctx_term has insane behavior by default

Solution: document this with a clear warning. It would be
nicer perhaps to change the default LINGER to e.g. a few
seconds. However this could break existing applications.
Merge pull request #1246 from hintjens/master

Documentation fix for zmq_ctx_term