task4-5
Merge pull request #4 from Margo-ogo/master

task4,task5
Task7 - preferences
Task7_1 - SQLite
Merge branch 'master' of https://github.com/bimv/EpamAndriodLab
Task_8_Fragments_ActionBar
Merge branch 'master' of https://github.com/bimv/EpamAndriodLab
Task_9_Styles