Check_MK Werk 5723: Fixed broken sorting of services

[Lars Michelsen]

ID:          5723
Title:       Fixed broken sorting of services
Component:   Multisite
Level:       1
Class:       Bug fix
Version:     1.5.0i3

The sorting was a case insentivitve text sorting at least since
1.4.0p7. This has now been fixed to work like as case insensitive
sort with the addition that texts and numbers are separated from
eachother before sorting.