English small fixes

Part of #244

Things I did:

• EP01-09: Removing extra spaces before ? ! :
• EP01-06: Add full stops at the end of sentences.
• Some minor fixes in grammar (comma, capitalisation)
• Removed some spaces before and after ... (to fit better in speech bubbles, otherwise it's not wrong)

New:

• EP10-18,36: Removing extra spaces before ? ! :
  (Every change has been checked to be artistically ok, and skipped those that aren't, e.g. EP13: Ghost screams and other ! ! ! )

(Had to rebase to avoid conflict with E14P05 vector fix)