Fixed: typo in readme.md
New: build.sh build script

Replaced fabfile.py and the Python Fabric module with a shell script that does exactly the same thing. Doing this to reduce unnecessary dependencies.

Refs #129
Docs: updated documentation to reflect new build script

Included instructions on how to use build.sh and officially eliminated the Fabric dependency.
Docs: formatting and grammar on readme.md
Fixed: .travis.yml uses new build script

See end of new line 2: "./build.sh all"

Refs #129