added appium beta install doc
Updating to include issue discussed in #4096
Merge pull request #4155 from apankov1/patch-1

Update troubleshooting.md
fix hybrid docs (fix #4144)
Fix getting sim dirs
unskipping fixed ios6 tests
Updating doctor for latest OS X version released
Fix iOS source test
Merge pull request #4168 from imurchie/isaac-source

Fix iOS source test
Merge pull request #4165 from macmishra/master

Updating doctor for latest OS X version (10.10.1) released
unskipping some ios6 tests