Merge pull request #17 from Edzelopez/VB-5

VB-5 deleted unnecessary files
VB-5 deleted cruft
VB-5 --more work on extension
VB-5 --plivo api integration
VB-5 --new values in xml
VB-5 --more work on extension
VB-5 --more work on extension
VB-5 --more work on extension