v0.4 bug fix

Some bug fixes.
OSX (El Capitan minimum), Linux and Windows binaries.

dr_sasa v0.4a

Merge branch 'master' of http://github.com/nioroso-x3/dr_sasa_n

dr_sasa v0.4

Update README.md

dr_sasa

Interaction pair matrixes are always summed by column now.

Fixes and contact mode.

Fixed some problems with files created in Windows, and added the new contact mode.

First release

First version, single threaded binaries for windows and linux.