Simple-db-migrate

- Changed: using only name and version to compare migrations. Changes on its content will be ignored on further executions
- Added: information on log about database (host, name and user)
- Fix: use of configuration file on current dir by default
- Fix: remove comments before parse sql statments on Oracle engine
- Fix: log number of affected rows on Oracle engine

- Added: option to set database port number
- Changed the use of database_host/database_name on Oracle engine.
To use a local tnsnames.ora only set the SID as database_name, and let database_host blank.
To connect without a local tnsnames.ora set the SID as database_name, and set database_host and database_port (default 1521) properly.
- Make possible execute migration down without any migrations files

- Fixing bug when sys.stdout has no encoding attribute, like in gunicorn

- Fixing bug which not allow to have two migrations with same timestamp

- Fixing entry point db-migrate

- Removing some legacy code which updates version table, check *Upgrading simple-db-migrate version* on README.textile
- Make configuration file optional, all configuration may be set by command line
- Added: an optional django app to integrate simple-db-migrate as a command to manage.py