Results per page validation
Merge branch 'master' of https://github.com/BuracayBeach/myfirstrepo into team4_v2.4.4
Merge pull request #126 from BuracayBeach/Team_5_Version_2.0

Team 5 version 2.0
refactored sql query strings, unshow delete button for borrowed books
Merge branch 'master' of https://github.com/BuracayBeach/myfirstrepo into team4_v2.4.5
Merge pull request #127 from BuracayBeach/team4_v2.4.5

Team4 v2.4.5