Add a fairly simple koji-like search-form to the resultsdb's frontend.
It should consist of a dropdown to select one of [Any testcase, List of testcases], [Any type, Koji Build, Bodhi Update], checkbox to apply "like" filter,text-input for the query and a submit button.
The search form will construct the right url, and redirect to the '/results' page.

Examples:
* Any testcase, any type, not-checked, eclipse-mpc-1.3.1-1.fc22 -> .../results?item=eclipse-mpc-1.3.1-1.fc22
* Any testcase, any type, checked, eclipse-mpc% -> .../results?item:like=eclipse-mpc%
* Any testcase, Koji Build, not-checked, eclipse-mpc-1.3.1-1.fc22 -> .../results?type=koji_build&item=eclipse-mpc-1.3.1-1.fc22
* rpmlint, any type, not-checked, eclipse-mpc-1.3.1-1.fc22 -> .../results?testcase_name=rpmlint&item=eclipse-mpc-1.3.1-1.fc22