refs #8274 Drop column phone number
refs #8324 Design help page
Merge pull request #37 from Poseidon1509/8324

refs #8324 Design help page
Merge pull request #39 from tmhnframgia/task8274

ref #8274 Drop column phone number
refs #Task8266 refactoring model
Merge pull request #38 from MuiNV54/task8266

refs #Task8266 refactoring model
refs  #task8273 Add contact page