Update Orbiter.m

This fixes an issue with error 107. Parse requires json/application Content-Type for payload.
Merge pull request #13 from rbaulin/master

Use json/application Content-Type headers for payload in ParseOrbiter
Bumping version to 0.0.3
Adding OAuth1 to Orbiter
Merge branch 'master' of github.com:hannelita/Orbiter
Merge branch 'upstream'
Removing DS_Store