adding error code returns to relevant functions
switching to returning error_codes directly
Minor non-functional changes to KDL
Namespace a debug message
Changed recipients of emails from Travis
Merge branch 'hydro-devel' into kdl_minor_changes
Allow planning groups to have more than one tip
Merge branch 'hydro-devel' of https://github.com/ros-planning/moveit_ros into hydro-devel
set the pose frame so we don't get a crash in approach&translate
refactor how we use params for pick&place
fix merge
Merge pull request #435 from isucan/hydro-devel

bugfix for pick&place and refactor how we collect ros params
Merge branch 'hydro-devel' of https://github.com/ros-planning/moveit_ros into hydro-devel
New ROS service call-based IK plugin
Use member NodeHandle in action clients.

Currently services and topics are already using the member NodeHandle instance,
but not the action clients.

This is relevant for two reasons:
- Consistency in the resulting ROS API namespace (everything in the same namespace).
- Consistency in the spinning policy. All services, topics and actions will be spinned
  by the same NodeHandle, and whatever custom (or not) spinners and callback queues it
  has associated.
Fix initialization reorder warning.
Fix for building srv_kinematics_plugin
added move_group python interface bindings to move group interface
function:
void setPathConstraints(const moveit_msgs::Constraint &constraint)
in order to be able to set path constraints from python scripts
directly and no need to use the DB.
Retrieve from the movegroup the current path constraints

now it is possible to retreve as a moveit_msgs::Constreints
the current path constraints for a group to be hable to maniputlate
them from cpp. Function is:

moveit::planning_interface::MoveGroup::getPathConstraints() const

This function is also added to the python bindings in order to
be ussable for python and moveit_commander package.

fixed a incohrence in naming the python call for set the constrains
from a msg object.

Addd bindings to this functionality to the python wraprre
added a little more vervose documentation