ENH: Added travisCI config.
DOC: Added build status to readme.
DOC: Syntax bug.
BUG: requirements syntax.
BUG: Travis.
BUG: Travis.
mjf edit abstract
mjf edit intro
mjf edits intro tut
mjf edits intro tut
mjf edits intro tut
mjf edits
DOC: Minor edits.
DOC: Added acknowledgements.
DOC: Many fixes and updates.
DOC: edit intro and abstract
DOC: Fixes in response to Imri's feedback.
DOC: Typos and other small fixes.
DOC: Added title and authors.
BLD: Testing TravisCI.