Fixed PHP version dependency

Fixes validformbuilder#34

Fieldset id attribute can be set

Fixes a problem were duplicate id attributes would be parsed if it was set during fieldset creation.

Added part of the fix for issue validformbuilder#30

Fixed bug validformbuilder#30

Fields would never show errors using back-end (PHP) validation.

Fixed faulty valuesToHtml output.

Added tip meta to all fields.

This enables the ability to add styling, classes or any other attribute to a field tip.

Fixed more method signature inconsistencies

Also added class functionality to ValidWizard buttons.

Removed version information from composer.json

This was throwing off Packagist.

Merge branch 'master' of https://github.com/neverwoods/validformbuilder

Removed deprecated documentation