Fixed doxygen function-grouping.
\defgroup was used to describe the groups of functions, but that is supposed to
group classes and files into modules.  The grouping of functions was correct in
the code and the \defgroup tags just needed to be changed to \name tags, which then
group the functions nicely within the same page.
fixing broken tests for changes in robot_state
Merge pull request #102 from ros-planning/fix-defgroup-doxygen

Fixed doxygen function-grouping.
Merge pull request #103 from ros-planning/hydro-devel-test-fix

fixing broken tests for changes in robot_state
Compute associated transforms bug fixed.
Merge pull request #105 from voop/hydro-devel

Compute associated transforms bug fixed.
fixing distance field bugs
fixed duration in robottrajectory.swap
Merge pull request #118 from ros-planning/fix-distance-field-bug

fixing distance field bugs
corrected maintainer email
Merge pull request #122 from d00fy/hydro-devel

fixed duration in robottrajectory.swap
Merge pull request #121 from ros-planning/correct_maintainers

corrected maintainer email
robot_state: fix copy size bug
Merge pull request #123 from acornacorn/hydro-devel

robot_state: fix copy size bug
update email addresses
always check for dirty links
Merge pull request #124 from acornacorn/hydro-devel

update email addresses
Merge pull request #125 from isucan/hydro-devel

always check for dirty links
RobotState: added doxygen comments clarifying action of attachBody().
fix for computing jacobian when the root_joint is not an active joint