Merge pull request #33 from Olyol95/master

Subgroup3
added month and week screens
Added the Day Screen and all it's functionality
Merge branch 'Subgroup3' of https://github.com/Olyol95/PIM.git into Subgroup3
Merge pull request #36 from Olyol95/Subgroup1

Subgroup1
Merge pull request #37 from Olyol95/Subgroup3

Subgroup3
Merge pull request #38 from Olyol95/master

Subgroup1