Fix (float(__version__) > 0.11) crash for sklearn 0.13.x

sklearn versions added second dot and broke the float test used on line 1119, for which this pull request offers a fix.
Added a method to get the play position of current frame from a video file.

Similar to getFrameNumber(), this method gets the time of the latest frame being processed or obtained from the video source
fixed regex for path with uppercase
Merge pull request #565 from brooksryba/develop

Added new requirement 'svgwrite'
Merge pull request #558 from twneale/patch-1

Fixes (float(__version__) > 0.11) crash for sklearn 0.13.x
Merge pull request #559 from mayankpj/develop

Added a method to get the play position of current frame of video file.
Merge pull request #563 from vighneshbirodkar/regex

fixed regex for path with uppercase
Update README.markdown

added svgwrite to install instructions
first draft GigECamera
add timestamp, fix a couple things
add'l todo
Merge pull request #570 from waspinator/patch-1

Update README.markdown
Merged in Nate code and added other features to get Basler Camera working with Aravis
Merge branch 'develop' of github.com:sightmachine/SimpleCV into gigecamera
Fixes installation procedure on Macs

pil's formula was recently removed from brew, and 'brew install pil' no longer
works.
Merge pull request #571 from victsou/readme

Fixes installation procedure on Macs
Added auto scale size for the display class
Merge branch 'develop' of github.com:sightmachine/SimpleCV into develop
Update README.markdown
Update HOWTO-Install on RaspberryPi.rst