Fix --avd flag by removing double quotes (spawn doesn't like them, only exec)
Adding desired capabilities doc
Merge pull request #1122 from penguinho/avd_fix

Fix --avd flag by removing double quotes
Update caps.md
Must run safari on simulator before running appium

Fix #755
Merge branch 'master' of https://github.com/penguinho/appium

Conflicts:
	docs/caps.md