Add book listing

[tadgh]

• Renamed AddListingActivity to better reflect its actual purpose. It is now InputISBNActivity.
• Created REAL AddListingActivity which displays the page where the data is autopopulated and you simply have to put in a price.
• Ellipsized the item views of all three tabs so that it doesn't wrap around.
• Reworked Book creation into a static method in the Book class, which accepts a JSONObject of kind=book.(need to do same for listing and course)
• Made Book implement Parcelable so that we can pass book objects around as parameters in a putExtras() of an intent.

[flyingtoaster0]

works on my phone. i looked at the code a little bit and i don't see anything that would break. Looks fine to me