[bc break] Remove the IPageFactory interface

[aik099]

Originally the IPageFactory interface was designed to allow people to create page factories that use different (not annotation-based) means for specifying element/block selectors.

To my knowledge only other possible implementation of IPageFactory interface would be like in BehatPageObjectExtension (see http://behat-page-object-extension.readthedocs.org/en/latest/guide/working_with_elements.html), where instead of class properties with selectors defined as annotations there is an $elements array property where you define each element (key) and it's selector (value).

To finalize I believe that annotation-based approach is core of the library and this should be stressed out by:

• removing IPageFactory interface
• changing any mention of IPageFactory interface to PageFactory class

[aik099]

Technically public method declaration change, that are using IPageFactory can be considered as BC break and according to SemVer result in next release version to be 2.0.0.

I'm not sure however about version number change like this.

[evangelion1204]

Do we still keep this in 1.1 or move it to 2.x? You are right about the BC break and in this case the major version should increase.

[aik099]

Tricky subject. I double anybody is implementing this interface in their custom factories or using it for typehinting. But regardless other class (using factory) constructor signature would change and since it's public this is bc break for sure.