Create README.md

Added a link to the automated build system at travis-ci.org.  Our first build was a success!
Merge branch 'master' of https://github.com/RHESSys/RHESSys
[#2] fixes g2w/AverageTables_Unix/makefile for Linux
build entire project in travis. closes #3
add cf test suite to travis - fixes #4
add code coverage report generation script and makefile edits - closes #6
Update README.md

update the readme with information about travis-ci, the test suite, and the new code coverage script.
better output for coverage script, and exit on any error
add notes about static analysis - cppcheck - closes #7
tweak to cppcheck section
not a local executable
Update README.md

update readme with compiler warning numbers
Merge of the readroof branch
[Fixes #11] Added some functionality to normalize the roof patches, normalize_roof_patches.
[Fixes #14] Added code to compute_gamma to set the gamma_neigh and total_gamma fields on roof patches to a non-zero value.
Added text describing roles of master and develop branches
- Added a blank line at the end of the makefile to demostrate committing changes
Removed blank line to illustrate commit change to a feature branch
Edited to add description of branches
Merge branch 'testfeature' into develop