Fix multiple target patterns error on 1st run
Sed expr works in GNU sed not osx, use PHP instead
Increased size of varchar column info for table, the former size created errors for loading known datasets. Furthermore improved the intructions given in the sample vcf.params file.
Improve R build

- Do not conflict with another installation of R
- Enable readline support for a better experience
- Permit profiling
Merge thehyve/master into thehyve/london_hackathon

Conflicts:
	env/Makefile
Merge thehyve/london_hackathon into transmart/london_hackathon