refs #254: set is_active on inquiry details

Case #1: 1st record, always set to true
Case #2: Newly created record, always set to true
Case #3: When current record is set to true, set others to false
Case #4: When current record is set to false, and all others are not set
to true, keep current record to true
Merge branch 'master' of git@github.com:RonBe/loan.git