added 2 methods isCurrentCameraDeviceSupportFlash,freezePreview
PBJMediaWriter, change default format to MPEG4, fixes GH-131
add a travis-ci config file
Project file, remove dead target reference
updated README
Update README.md
added CONTRIBUTING.md
Update README.md
Update CONTRIBUTING.md
Update CONTRIBUTING.md
Update README.md
Merge branch 'master' of https://github.com/piemonte/PBJVision