1.6.1 alpha.wallhaven.cc -> wallhaven.cc

• Fixed wally's url.
• Updated to target latest Android version (minimum supported not changed, nor tested)

I hadn't planned on updating this again and lost the signing key, so I've added a new one and committed it.
You will need to uninstall the previous version of Wally before installing this one.

1.6.0 DavidWhitman fix v2

• With better handling of when the file permission is missing.
• And a new signing key, so you'll need to uninstall any existing version of Wally.

1.6.0 davidwhitman fork - fixes crashes and adds Android N support

This release fixes crashes when loading many images as well as adding support for Android N.

THIS IS NOT AN OFFICIAL RELEASE by the original author. This is a fork by me, and you will not be able to install this apk at the same time as the official one from Google Play (because they have different signatures).