How do I get composer to install my repo from Bitbucket?

How do I get composer to install my repo from Bitbucket?

My composer file looks like this:
{
"name": "mnbayazit/pdblog",
"description": "A simple blog",
"minimum-stability": "stable",
"authors": [
{
"name": "Mark Bayazit",
"email": "mnbayazit@gmail.com"
}
],
"require": {
"silex/silex": "1.*",
"twig/twig": ">=1.13.2,<2.0-dev",
"symfony/twig-bridge": "~2.3"
},
"repositories": [
{
"type": "hg",
"url": "ssh://hg@bitbucket.org/mnbayazit/pdoplus"
}
]
}
When I run composer.phar update it tells me:
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Writing lock file
Generating autoload files
But never creates anything for pdoplus under the vendor/ folder.
Have I configured something wrong? The composer file in my other project
looks like this.