Project title should be unique

We want the project titles to be unique. If we allow them to be
duplicated we end up with lots of same-name projects. What we want are
project titles that are more descriptive. This should help encourage
this behavior.
Project.search default AND queries

We want all project search queries to default to AND instead of OR. It's
likely that all search terms are desired.
Added total count for project search

Total number of projects found using project search query.
Sum project query price

The @count object for projects#index includes statistical information on
price.
Project totals and improvements