Create namespace.rst

Proposed informational REP on driver namespaces.
Create laserscanner.rst

First draft of LaserScan rep.
Add units to time_offset
Change intensity parameter to more descriptive "publish_intensity"
Change *_angle params to angle_* to match messages
Renamed to be REP 135
Posting to ROS users on 20/Feb/2013
Merge pull request #1 from ericperko/laserscanner

Laserscanner
Add REP 137 (rosdistro files)

This REP defines and specifies rosdistro files needed
to centralize ROS distribution information and to ease
building ROS on custom buildfarms
Updated to add more description to topics/params
Using assigned number REP 138
Posted to ros-users on 2/25
Updated topic section to contain new headers for required and support topics
Changed intense to most_intense for topic name
Updated parameter descriptions
Merge branch 'laserscanner' of github.com:chadrockey/rep into laserscanner
Incorrect lowercase on letter 's'
Forgot to change REP number inside text.
Forgot to change REP number inside text.
Incorporating kwc's suggestions.