added stored procedure to remove archived bit check from search, added migration
added call to new stored procedure for calendar search to php course model
added calendar-specific function for searching courses by title to php course model
updated query functions and calls to differentiate between calendar and non-calendar searches
drop and create procedure in two statements, renamed object to match filename
Merge pull request #706 from thecoolestguy/576_course_filing_removal_bug

576 course filing removal bug