Config migrate to db

[bugsysop]

Problem

• Fix #215

Solution

• Push content of config file created by YNH in DB
• See this comment to issue 215

PR Status

• [x] Code finished and ready to be reviewed/tested
• [x] The fix/enhancement were manually tested

[bugsysop]

!testme

[tituspijean]

!testme

[yunohost-bot]

:carousel_horse:

[yalh76]

thanks a lot :)