Merge pull request #41 from Bohdan-Tereta/master

Issue #32 Calendar: vertical wheel scroll for name list to be added solved
small corrections were made in AbsenceController and EMPController
ExcelLibrary.dll was changed
Merge pull request #43 from AnnaStorozhenko/master

Updated ExcelLibrary.dll to answer #29
Update CONTRIBUTING.md

'Done' label
Pre-release
Test Server
When issue is closed
2 methods ExportWTRForEMP(), WriteWTRDataForEMP() added to WTRController, GetWTRDataPerEMP.cshtml view created, and WRTControllerTest updated
Merge pull request #44 from Bohdan-Tereta/development

Issues 32, 36 solved
Update CONTRIBUTING.md

All pull requests are made to 'development' branch.
Development branch is merged to 'master' after Test Server tests are finished.
Then Release is created and deployment to production is possible.
Merge pull request #48 from AnnaStorozhenko/master

Issue #45 is solved
Merge remote-tracking branch 'upstream/master' into development
Merge remote-tracking branch 'upstream/development' into development
Small indentation fixes for code to look better