Adding dynamic where's to the query builder.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Merge branch 'refs/heads/master' into feature/database-dynamic-where
Adding positive look-ahead for And/Or matching in dynamic query.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Merge branch 'refs/heads/master' into feature/database-dynamic-where

Signed-off-by: Ben Corlett <bencorlett@me.com>

Conflicts:
	tests/Database/DatabaseQueryBuilderTest.php
Merge pull request #249 from bencorlett/feature/database-dynamic-where

Query builder - dynamic "where" clauses