adds node statistics information to ros_topology.Node
implements node_statistics and tooltips in rosprofiler_adapter
refresh button now manually refreshes the statistics too
adds logging printouts for debugging
Merge diarc v0.3.0 into devel
Squashed 'src/diarc/' changes from 2d5bc93..0f693fe

0f693fe v0.3.0
1f8290a replaces print statements with logging
0bcf08e added error message to run.py if python_qt_binding is not installed
cc7d4f1 updates qt from PyQt4 to python_qt_binding
710d014 adds tooltip_text to ViewItemAttributes
6998e18 edits debug printouts
e3ea300 implements clicking snaps brings bands to front, decouples clicking and draging bands
b0c0f72 implements rank rearranging to bring bands to front
7af56b1 Removes label_rotation option, centers and truncates all labels

git-subtree-dir: src/diarc
git-subtree-split: 0f693feb0f23e969b3a0137cc82df50d556649d7
adds environment variable debug printout control
adds data buffers for topic and host statistics
node statistics processing improvements, adds topics statistics
processing
Squashed 'src/diarc/' changes from 0f693fe..f211fbb

f211fbb v0.3.1
c6aa7c1 fixes bugs with arrows and dragging constraints
767d8f4 restricts movements of blocks to not moving right beside itself
2cc892f adds arrows to qt_view
42daf10 adds topology documentation
fca3da5 updates documentation
3125feb Update README.md
624d3e3 adds documentation
aa703cf initial add of sphinx documentation

git-subtree-dir: src/diarc
git-subtree-split: f211fbbf3281eeb1d143a2f6baf7804d3fe371e3
Merge diarc v0.3.1 into devel