cleaned up the mess I left behind in 44fa94e52069d305fea85fa9347f88a8ad1eff44
typo fix
phpdoc embellishments and stubs for IIS parsing methods.
request method for validation and routing (untested)
be a bit more liberal about multiple spaces separating attribute values
added 'prerequisites' section to the introduction chapter
changed output types so routes without fallback declaration do NOT fall back to the default type anymore
some basic i18n manager stuff
Fixed tests for AgaviNumberValidator, AgaviDateValidator and AgaviEmailValidator.