Revert "Ignore IDE folder"

This reverts commit e4486009e167e4c00e87e611133f4a454bc768aa.
Remove display() method from Form entity
Remove Form#findById() to prevent infinite recursion

...pushes the Wolf CMS requirement to 0.8.0.
Enable HTML5 forms by default
Remove postcode field type
Bump version number to 0.2.0
Create CHANGELOG-0.2.md
Simplify file docblocks