Configure novnc to implement browser-based VNC client accessible from CloudMan.
Add some simple documentation for novnc options to fabricrc, feel free to backout of this commit if that fabricrc file is getting to verbose.
Disable novnc by default, enable by setting  in fabricrc.
Merge pull request #61 from jmchilton/novnc

noVNC Integration (Access In-Browser VNC Client from CloudMan)
Sed alternative does not work here, reference to GENOMES_SUPPORTED new location
Merge pull request #63 from brainstorm/master

Sed commands in data_fabfile.py
Improve support for CentOS and ScientificLinux: latest EPEL and updated package lists. Move to latest cortex_var release
Merge branch 'master' of github.com:chapmanb/cloudbiolinux
Install R dependencies for GATK's gsalib R plotting functionality
Include default /usr and /usr/local include directories for GSL headers when compiling cortex_var. Thanks to John Hudson