PresenterComponent: Added method getParameters() to obtain all parameters.

Deprecates calling getParameter() with no arguments.
Merge pull request #986 from Majkl578/feature/presentercomponent-getparameters

PresenterComponent: Added method getParameters() to obtain all parameters.
Forms: added description for submit button to default renderer [fixes #17]
Merge pull request #988 from saterond/master

Forms: added description for submit button to default renderer
tests: updated DI test, typo
DI: added support for annotation @inject
DI\ContainerBuilder: inject method and properties can be defined in 'setup' and are called only once
Merge branch 'master' of git://github.com/nette/nette