mailer function depend on just_smtp and mimemail

[ma3310]

• [x] default configuration for just_smtp
• [x] token support

[ma3310]

• [x] send one full customized mail through moha_mailer
• [x] send one basic page as mail through moha_mailer
• [x] full manual sending function

[ma3310]

• [x] send mail through cron

[ma3310]

• [x] module correctly works on a fresh installed site
• [x] backend configuration to suspend mail sending

[ma3310]

• [x] mail management search function
• [x] autotest case
• [ ] dashboard, sent mail weekly, monthly...