add LoadedPluginInformation class to process composer's installed.json file and pull out information about phpci plugins.
update plugin controller to display plugin information as well as composer package information.
When phpci is default, it should be used.

The installer displays `phpci` as placeholders for the database settings (database and username).

When I do not change them the installer fails with this error:

`Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[3D000]: Invalid catalog name: 1046 No database selected' in /Users/tobias/Sites/PHPCI/vendor/block8/b8framework/b8/Database/Map.php on line 40`

I assume it is simply because they are not set. This pull requests uses the given values, or phpci as default.

In theory I would assume all the configuration values should be checked somehow. Is this just not implemented, or is it not desired?
Redirect after installation is broken

Currently the form just redirects to `/session/login`, which is wrong if PHPCI was installed into a subdirectory. 

This pull request fixes the URL that is used in the last form step.
Merge pull request #256 from tobiastom/patch-1

When phpci is default, it should be used.
Merge pull request #257 from tobiastom/patch-2

Redirect after installation is broken
Fixing short tags
Merge pull request #261 from woganmay/patch-tagfix

Fixing short tags
Fixed: Array access for $config, which is already object create in bootstrap.php
fix wrong url on view
Merge pull request #271 from kodok-buncit/master

fix wrong url on view
Updating PHPCI to support new b8framework release
Update phpci.yml
Updating Bitbucket Webhook
Merge branch 'master' of github.com:Block8/PHPCI
Fix
Update README.md
Fixing Bitbucket and Github webhooks
Merge branch 'master' of github.com:Block8/PHPCI
Update README.md