codeception configs, web config modifed for db-settings
new entry points for application
colors added
tests modified, bootstrap added
configs fixed and improved
added testcase for unit tests, bootstrap files improved, tests inherited from base testcase
doc fix.
created proper progress bar

fixes #1293
fixed output in Console::select()
updated extension documentation; added sections dependencies, versioning and authorization
reverted events
Add extension support to yii\twig\ViewRenderer
a note about how to not use gii

related to #1482
Merge pull request #1487 from nergal/twig-viewrenderer

Add extensions support to yii\twig\ViewRenderer
gii docs
updated gii docs
use andWhere() in AR::find() to work properly with default scope

fixes #1469
updated code style, added autoloading and prefix examples
updated dependencies and testing
added link to composer docs about autoloading