Stylistic changes.

Editing strings.xml to change references from "sessions" to "entries" for wedding guests. Also hiding unused session fields and increasing size of message field.
Merge pull request #7 from AndroidMontreal/jdhorner-work

Stylistic changes.
new icons for wedding theme:
Merge branch 'master' of https://github.com/AndroidMontreal/WeddingVideoGuestbook
Merge branch 'master' of https://github.com/AndroidMontreal/WeddingVideoGuestbook