Merge pull request #190 from phpbb-extensions/release-1.0.0

Merge Release 1.0.0 branch
Remove reset button - issue #187

Also move submit button after preview one
Remove buttons
Remove &nbsp;
Change categories when editing a rule
Add change parent operator test
Fix change parent operator test
Merge pull request #191 from Pico/issue187

Remove reset button - issue #187
Closes #187
Move parent before title
Padding improvement
Remove if statement from template
Correct indentation
Fix some indentation offsets
Improve throw exception
Correct throw exception
Merge pull request #193 from VSEphpbb/updates

Fix some indentation offsets
Merge pull request #192 from Pico/issue165

Change categories when editing a rule
Closes #165
Allow parent select menu when adding rules
Make pull down menu code a method
Make rule_parent_id name the same everywhere