Edit improvements to English text

For Issue #420. These edits fix grammatical mistakes, correct capitalization of many words, fix overuse of certain types of punctuation, and generally make the text more consistent and easier to read. Especially for the dialogs that occur between characters in the game. Hope you like these changes. It took me several hours to go through every line of text in the game.
I left Goddess Shine capitalized because it seemed like it was the title place name. For example, Layna Village is capitalized because it is the title of a specific place. If this shrine has a different title (such as Mt Elbrus Shine), then yes, it should be lowercase. I just wasn't certain whether "goddess shrine" was the title of the place or a more general term for the location.

I leave the decision of whether to make it lower case or not up to you.