* psql: Improve page
- Removed * , this was causing problems with rendering. The node client was
gobbling up the entire word !
- Changed 'query' to 'command' as it can be a postgres db command too.
- Used the -f flag for running multiple commands as its a better and scalable
option.
* Addressing comments
* Replacing against with on
- Mentioning the default user
Fixes#310
Some files had no newlines, some had 1 newline and some more than 1 newline.
Normalize them all to have only 1 newline at the end of all files.
