fix inconsistent indentation
Limits changed, servos get full range of movements

This is a backport of changes from Hanson Robotics
https://github.com/hansonrobotics/ros_pololu_servo/commit/0cd8eeaa9c915fa52ef69bf4033a262e8e64bff3
whitespace changes: wrap insanely long lines
Merge pull request #7 from linas/back

Backport of Hanson Robotics changes