Fix uninitialized variables
Merge pull request #17 from v-lopez/fixes

Fix uninitialized variables
Fix names in singleshot mode.
Added Recognize action to blort_ros_msgs package
Added field to display remaining time.
Added action server. The behaviour now is equivalent to the service call.
Fix issue of multiple consequtive calls.
Start to allow multiple sift for one object

Conflicts:
	blort_ros/src/gltracker.cpp
	blort_ros/src/nodes/tracker_node.cpp
Factorize code for ObjectEntry vector reading

Conflicts:
	blort_ros/CMakeLists.txt
Fully implement multiple sift files per object

Conflicts:
	blort_ros/src/gldetector.cpp
Return the pose with the best confidence
Move ObjectEntry.h to correct include directory
Add an example config file for multi sift tracking

The example config highlights all possible patterns