Merge pull request #24 from Olyol95/master

Subgroup2
Added ContactsScreen (changed screen size)
Changes to calendar screen
updated contacts screen and calender views
small changes to table
Merge pull request #29 from Olyol95/Subgroup2

Subgroup2
Merge pull request #30 from Olyol95/Subgroup1

Subgroup1
Merge pull request #31 from Olyol95/master

Subgroup1