pgcli/TODO

* [] Meta-enter to end the line not just semi-colon.
* [] Cmd-K breaks in OS X.
* [] Typing mid stream doesn't complete, only end of line is auto-completed.
* [] Column list for INSERT INTO would be nice. 
* [] :q for quit.
* [] INSERT INTO accounts ;
      show accounts;
      current transaction aborted error.
* [] Check why Indexes have a invalid at the end when \d is called on them.
* [] Add some tests. Sanity, Unit, Completion, Config.
* [ ] Add tests for smart completion.
* [] Check how to add the name of the table before printing the table.
* [] Show only table sensitive columns in autocompletion.
* [] Add logging.
* [] Setup the pgcli.com website.
* [ ] Add a new trigger for M-/ that does dumb completion.
* [] Improve the smart completion for Insert statement.
* [] Improve the smart completion for Update statement.
* [ ] Find a way to add documentation to sql commands. This could get tricky.
* [ ] Detect a '.' and parse the word before it and get it's real name.
* [] Refactor the execution and output into a separate class.
* [] Create a class for the config and make it easy to access.
* [X] postgres:// url is failing.
* [X] Implement \l, show databases
* [X] DESCRIBE is also not listed in the autocompletion. 
* [X] Add MySQL commands (use, describe etc)
* [X] Add function keys that can enable/disable smart completion.
* [X] Add a toolbar at the bottom with some helpful keyboard shortcuts.
* [X] Fix smartcompletion for special commands. \d <tab>
* [X] Add more complex slash commands such as \d <table_name>.
    * This is going to take a separate lib.
* [X] Create a better framework for adding special commands.
    * A dict with special commands as keys.
    * The value can either be a string or a callable.
* [X] Fix the \d <tablename>. Seems broken.
* [X] Check what happens when \d django* is run.
* [X] \c is broken. 
* [X] Vendor in tabulate.
* [X] Create a separate pgspecial package.
* [X] Vendor in pgspecial package.
* [X] Auto-refresh for \c and 'use' statements.
* [X] Add \c command.
* [X] Add exit, quit and \q.
* [X] Get new table style merged back to tabulate.
* [X] Add multi-line support.
* [X] Refresh tables and columns after a create table and alter table.
* [x] Add a lot more SQL keywords to auto-completion (Read the postgres docs)
* [X] Deal with commands that have no return rows (such as delete, begin transaction etc).
* [X] Update README.
* [X] Upload rev 2 to PyPI.
* [X] Add borders around the table.
* [X] Investigate why having a space in the beginning of the line breaks everything.
* [X] Test if the special comands are autocompleted correctly.
* [x] Control smart completion via config file.
* [x] Figure out how to deal with transactions.
* [X] Add a config file.
* [X] Add context sensitive auto-completion.
    * Check how sqlpython is doing it.
* [X] Prettify the output into nice columnar tables.
* [X] Check how to deal with failed commands that result in dangling transaction.
* [X] Add a history file.
* [X] Deal with errors that happen at connection (password, host etc).
* [X] Deal with errors that happen during sql execution.
* [X] Add auto-completion based on the tables, columns names.
    * launch psql with -E option and try \d, \dt etc and copy the sql statements.
* [X] Translate the commands to pg backend.
* [X] Add options to read the host, user, passwd etc.
* [X] Add the back-slash commands.
    * launch psql with -E option and try \d, \dt etc and copy the sql statements.