Bump version to 0.60

Bump version to 0.59

Bump version to 0.57

Bump app version to 0.56

Bump app version to 0.54

Validate file path in TermuxOpenReceiver

Bump version to 0.53

Bump version to 0.52

Bump version to 0.51

Change android:extractNativeLibs to false

We're trying this to see if that fixes an F-Droid build issue.

See termux#319.