Typo fixes

Corrected three typos in English app.json
"integrals" instead of "integral" in tour description of rewards
"effected" instead of "affected" in Tavern description
"Habit an open" instead of "Habit is an open" in Remove Ads
Update app.json

Add'l English syntax fixes to Tavern description
Merge pull request #1296 from SabreCat/develop

Typo fixes