collection/forms: fix code

Fix #32.
authors: add Jake Schmitz
license: update file
requirements: update dependencies
requirements: remove nose
Makefile: use unittest discover instead of nose
flask_mongoalchemy: use the new extension scheme

Fix #34.
examples: fix library example
coveragerc: fix package name
tests: remove nose configuration file
gitignore: cleanup
docs/index: fix extension import path
readme: preparing for new release
flask_mongoalchemy: fix flake8 issues

Ran flake8 . --max-line-length=99
examples/library: fix flake8 issues
docs: fix flake8 issues
examples: fix books_collection example
setup: bump to 0.6.0