Update localizers to support tf prefixes
Fix frame prefix default
Fixed bug in ApplanixTransformer

the construction parameter is the frame prefix, not the child frame, and
it should default to "", not "base_link"
Merge branch 'master' of github.com:StanfordDrivingTeam/driving_public
ladybug: added comments and debugging info
Added program to split bags
raw_playback grasshopperR
small improvement in rxplot
switching log_and_playback to release build
using URDF to store static transforms
better comments in ladybug recombine
fixed start time bug in data reader
small improvement to data reader
using pcl_conversions to convert pcl stamp (instead of *1e-6)
Add script to compute topic size in bag files
Add --dry-run argument to wiki_annotate
Detect hardware estop state from PassatStatus

Fixes driving/#80
added some comments
better track_file_tools visualizer (whole frame mode)
several changes in track_file

- moved common from track_file_tools to track_file_io and renamed it to
manipulations
- added merge and delete functions to it
- enclosing everything in namespace track_file_io
- added a unit test for reading and writing track files (needs more
tests in it)