[openFATE 306588] Improve on software search

Feature changed by: Juergen Weigert (jnweiger) Feature #306588, revision 2 - Title: improve on software search + Title: Improve on software search Requested by: Juergen Weigert (jnweiger) Description: software.o.o/search is always a case insensitive substring search. I'd like to hack into the system and add - optional case sensitivity,- exact package name search- regexp search This is an opportunity to learn ruby on rails for me. Any takers, who want to coach me, especially with Rails welcome. -- openSUSE Feature: https://features.opensuse.org/306588