added perf tests for bioinspired
reg module: Add sample and README file

README.md file with a short description of the module is added. An
example on how to use the module can be found now in reg/samples/.
add an RGBD module
fix compilation problems seen in #12
fix compilation problems seen in #11
Update README.md

just added procedure if using cmake-gui interface
Update README.md
added a local extremum blob detector that can be used after retina module to detect transient areas (low level saliency)
New feature to tracking sample

Now initial bounding frame can be given in command-line, as an alternative
to manual selection via mouse. Bounding frame is given as optional last
argument in the format "x1,y1,x2,y2" where x's and y's are integers,
symbolizing bounding box with opposite vertices (x1,y1) and (x2,y2).
Fix bioinspired build on Mac (clang)
Temporary hack to workaround optim build issue on Mac (clang)
Initial version of Travis config
Ping Travis
Fix Travis config
Revert "Temporary hack to workaround optim build issue on Mac (clang)"

This reverts commit 2fb9cac027f3582d499f0b6fa85093c3e4261e0c.
Workaround build issue on Mac
Tracking-Learning-Detection and MedianFlow

This contribution includes the following logical components into
tracking module:

*) Change Rect to Rect2d into headers for Tracker's methods;
*) MedianFlow tracker;
*) extensible benchmark to compare trackers interactively and assess
them quantitatively;
*) TLD tracker (work-in-progress);

Work was funded by Google Summer of Code 2014 initiative. Mentors: Gary
Bradski and Vadim Pisarevsky.