Merge pull request #84 from FellowTraveler/master

Fixes for broken build on Mountain Lion + other fixes related to calls to the OT API.
Merge pull request #85 from FellowTraveler/master

Fix for building on linux.
Update INSTALL-unix doc for C++11 default build.
Merge pull request #86 from randy-waterhouse/master

Update INSTALL-unix doc for C++11 default build.
Update README.md for new develop branch only contribution rules.
Merge pull request #87 from randy-waterhouse/master

Update README.md for new develop branch only contribution rules.
Check for gcc > 4.7 (c++11 or c++03 build).
Update doc/INSTALL-unix.txt.
Merge pull request #88 from randy-waterhouse/master

linux qmake check for gcc < 4.7
Merge pull request #89 from FellowTraveler/master

Updated to use OTRecordList (in OT develop branch)