Merge pull request Comcast#152 from Comcast/consolidation

Consolidation

Merge pull request Comcast#151 from rachelding/fix/ttml

Fix ttml tag and extension

Merge pull request Comcast#149 from fancybits/fix-range-off-by-one

Fix off-by-one in range check

Merge pull request Comcast#145 from fancybits/guard-from-invalid-psi-…

…pointers

Corrupted packets can have invalid pointer fields

Merge pull request Comcast#147 from LimitlessEarth/to-ints

Set pids to ints from uint16

Merge pull request Comcast#146 from rachelding/feature/ebp-sync

Added support for ebp sync

Merge pull request Comcast#144 from rachelding/feature/ttml-subtitle

Added TTML support

Merge pull request Comcast#142 from rachelding/add/audio-type

Added audio service type const

Merge pull request Comcast#140 from Comcast/filter_packets

Ignore PAT and PMT pids when filtering packets

Merge pull request Comcast#140 from Comcast/filter_packets

Ignore PAT and PMT pids when filtering packets