1) Added the ability to skip the top level of the taxonomy, useful if you want to hide this.
2) Removed a fuzzy search that skipped parents
3) Fixed an error when a content type had no taxonomy attached
4) Removed redundant clause in search query

Eg: where (name = '% search_string%' OR name = 'search_string%')

Eg: Each term named "a" is an individual term.

a
a -> a -> f
a -> b
a -> b -> c
a -> b -> d
a -> e

Also made to search SQL use a double wildcard.

Eg: where name = '%search_string%'

Prior commit

a (tid: 1) -> b (tid: 2)
a (tid: 3)

Validation checks on "a" gave two terms (1 and 2), thus an error.

Now the checks do not include 1 as it had a parent and the full path to it's parent was not given.