Changed wording in two of the English messages

Changed "chose" to "choose" in two messages, changed the wording in one of them to be a bit clearer in English. This is a test to see how submitting a pull request to the main project goes.
Changed left (key) side back to original values.

Changed the spelling/wording on the left side back to original values because those are the keys used to look up the messages.
Merge pull request #101 from dullroar/master

Changed wording in two of the English messages