Added Tumblrs, Refined Profile Search

Refined the process of the 'totalsearch' within the profile view, which
is going to be more advanced and easier to use than the current
chat-view search, at which point I'll switch over.

Also cleaned up some buggy behaviour in regards to using the next & prev
search, plus ran a live check for dupes in the All Gifs array.

Nothing major at the moment - I have a feeling some really big stuff is
just around the corner in terms of improving the whole look & feel of
Mashabout, and beyond that it will be time to show the MVP to a designer
and another developer to talk about making a big leap with it...