Fixed php doc block in AbstractCommand
Fixed generated docblock of ObjectBuilder for temporal accessors telling \DateTime is returned, but in reality it returns $dateTimeClass (as defined in the config)
Removed some unused code
Default value in the documentation of toXXX()

Adding a default value in the documentation to the methods toXXX() so that some IDE (e.g. PhpStorm) don't show a required parameter error
Merge pull request #681 from mpscholten/removed-death-code

Removed some unused code
Merge pull request #677 from mpscholten/fixed-doc-block

Fixed php doc block in AbstractCommand
Merge pull request #678 from mpscholten/another-docblock-fix

Fixed generated docblock of ObjectBuilder for temporal accessors telling \DateTime is returned, but in reality it returns $dateTimeClass (as defined in the config)
Fixed test suite and added vendor/bin/phpunit to phpunit boot scripts.
Merge pull request #688 from ferjul17/patch-1

Default value in the documentation of toXXX()
Revert "Removed some unused code"
Merge pull request #689 from propelorm/revert-681-removed-death-code

Revert "Removed some unused code"
Merge branch 'master' of https://github.com/propelorm/Propel2
646: toArray() fails to recognise Primary Key as DateTime

Task-Url: https://github.com/propelorm/Propel2/issues/issue/646

fixes #646

Added check for object in InstancePoolTrait to fix problem with DateTime
Object as PrimaryKey during call of save.

Changed build of $alreadyDumpedObjects in toArray method to allow DateTime
as PrimaryKey