Fixing minor code typo in README

Sorry to be nitpicky. Removing a double semicolon in the set_expr example.
Merge pull request #91 from brianherbert/patch-1

Fixing minor code typo in README
Merge branch 'develop'

Conflicts:
	README.markdown
Add Firebird and PostgreSQL to supported DBs
Closes issue #99 Undefined index error
Add travis-ci configuration
Add travis-ci build status
Fix code style on method definitions
Simplify get_last_query()
Update the release date
Fix typo in select_many() example
Merge pull request #103 from sjparsons/master

Fixed a minor typo in the example of the select_many() function
Remove version numbers and bump year
Get syntax highlighting working code example
Document array config to use connection_string
Attempt to get syntax highlighting working
Merge branch 'master' of https://github.com/j4mie/idiorm
Prepend PHP tag in docs
fixed phpdoc in get_db()

phpdoc said it returns ORM, but it's PDO
Merge pull request #106 from mailopl/master

Corrected PHPdoc in get_db() from ORM to PDO