AniBeam for Android 0.6.1

Fixes on top of 0.6.0:

• Back from a show goes back to your search instead of closing the app.
• Shows with a slash in the name (Fate/Zero) download into a folder that works.
• Airing shows found through AniList can be followed.
• With no connection the search says AniList could not be reached, rather than that the show does not exist.
• Covers, the episode count of a batch, and a few words read right.

Install: open AniBeam-0.6.1.apk on the phone. It installs over 0.6.0.

From PR #124 (issue #120).