Fix NPE on isAccountNameUsed
Add settings import on Welcome
Fix welcome message layout
Fix indentation/code style
Refactor code to start Accounts activity to import settings
Merge branch 'improve_import'
Fix error duplicating false accounts when adding an account
Fix indentation and code style
Merge branch 'k9mail:master' into easy_new_account
Fix indentation/code style of 139ae1a