3.0.9

Feature changes:

• #29: Add reading screen slider to navigate pages. By @webofpies in #88.
• #13: Allow term deletion from reading screen. By @disfated in #85.
• #90: Add Sanskrit.

Bug fixes:

• Remove duplicate terms from list (multiple image records) (addresses #105).
• Graceful failure for non-utf-8 files (addresses #67).
• Fix arrow key increment (addresses #96).

Back end changes:

• Fix/disable flaky CI tests for reliability.
• Stats distribution field in db.