Fixes #502

Changed Column Constant getters

Changes:
1) getConstantName() -> getFQConstantName() and returns
[TableName]Map::COL_COLUMN_NAME
2) getConstantColumnName() -> getConstantName() and returns
COL_COLUMN_NAME
3) added getUppercasedName() and returns COLUMN_NAME
Merge pull request #516 from gossi/constants-patch

Fixes #502
Delete test.sq3
Install Behaviors with Composer
Merge pull request #511 from gossi/composer-behavior

Install Behaviors with Composer
Merge remote-tracking branch 'upstream/master' into config-refactor
Fixed "Undefined variable" in migration:status

Fixed "Undefined variable: oldestMigrationTimestamp" when running "migration:status" without "-v"
fixed enum param/return type
Merge pull request #514 from gharlan/enum-docs

Wrong phpdoc for enum getters and setters
Merge pull request #540 from livioribeiro/patch-1

Fixes "Undefined variable" in migration:status
Merge remote-tracking branch 'upstream/master' into config-refactor
Configuration system refactor - step 2

Implement Propel\Common\Config\PropelConfiguration class to validate configuration
and load defaults, via Symfony\Component\Config\Definition\Builder\TreeBuilder class.
Remove all not more used options and define a better property structure.