Added Non-regression testing in OSVersionInfo
Added test on event for ObservableSortedArrayList
Added test to check change position when collection count is equal to 2
Fixed SortedArrayList
Merge pull request #4 from Invenietis/fix-sortedarraylist

Aztheroth fix is okay.
I merge. 
Congratulations!
Deleted useless tests
Merge branch 'develop' into code-coverage