added starter code for scaffolded project
added sample playground slam map
some more changes for mobile robotics project
added support for pi commands
added dynamic pi reconfigure
fixed netmask
fixed use sim time
playground changes
new stuff

Merge branch 'master' of https://github.com/paulruvolo/comprobo2014
added a simple python script to explore sampling
Merge remote-tracking branch 'upstream/master'
made it so the code runs on the first try
fixed launch file to point ot the right starter code
Merge remote-tracking branch 'upstream/master'
distances were incorrectly numpy arrays instead of floats
added a new helper function for particle resampling.  Also added some better header comments to some of the functions
added a simple example of occupancy grid mapping
uncommented out the visualization
fixed occupancy grid algorithm and added some sparse comments
added 1d particle filter