fix errors on add-item page
fixing layout and javascript errors for add-items
working on add-item form generation
include in current topic type in full_set tree
working on add-item form generation
working on add-item form generation
fix errors preventing redirect after topic create
fix extended_field errors for add-item
Merge branch 'rr-admin-style-changes' into rr/add-item-topic
Remove TinyMCE stuff until we need it. Remove google map stuff
Allow this to break so we can find where the problem is in future.

Keep explanatory comment to help that future debugging.
replace custom code with awesome_nested_set method
Merge pull request #22 from kete/rr-add-item-topic

Let a user add topics from the "add item" menu. Merge OK'd by Eoin.