Django-neomodel

* Allow required fields to be excluded from forms when updating, closes 6
* Require neomodel 3.2.5 (neo4j_driver 1.2.1)

* Exclude test directory from install
* Correct docs indent (Devin Barry)

* Requires neo4j_driver 1.1.0 (Added in neomodel 3.2.0)
* Cleaned up signals code
* Add new config options MAX_POOL_SIZE and ENCRYPTED_CONNECTION
* Require neomodel 3.2.0 (auto_install_labels disabled by default)

* Initial release