code cleanup and documentation partly solves #46

myServer.js
- removed/moved dependencies
- added additional comments
- moved database code to db functions

src/oi/SideIdea.js
- fixed issue where tags and skills wouldn't be reset after saving one idea. The
  next idea would get the old tags and needed skills.

src/oi/SideShowIdea.js
- changed variable names

src/oi/mastodon.js
- new file to handle posting on mastodon

passport-config.js -> src/oi/passport-config.js moved file (cleanup)

src/oi/sqliteDb.js file which handles all database handling