Add backwards compatibility with bunch library

[mbarrien]

For people who have "bunch" spread all over the codebase from the library, this adds the old Bunch/bunchify/unbunchify names that call Munch/munchify/unmunchify respectively. This allows having the change in code when switching to munch be restricted just to a library name change.

[drrlvn]

You put the backward compatibility assignments in the wrong place -- between a try and its except. This causes a SyntaxError exception, as you can see in Travis.
You should move the code further down, after the except block.

[mbarrien]

Fixed my boneheaded error.

[vmalloc]

Sorry - I'm not a big fan of dragging legacy around for no apparent reason. You're already greping or seding your files for the import bunch -> import munch change, and bunchify/unbunchify are unique enough to be solved by another grep or sed...

Accepting this change means we'll forever be confused about what a given piece of code uses, instead of just moving forward.

[mbarrien]

I'll be frank here... I'm trying to convince someone else in my work to move to munch over neobunch, and he's pushing for neobunch because it's less code change. My choice right now is etiher to convince him to grep (across multiple repos), or convince you guys to finish convincing the neobunch project to do the merge. Otherwise, neobunch is going to win at my org.

[vmalloc]

Well I honestly think a single sed command is enough to do the transition. If you want we can even try help him with that (if the code is in a repo somewhere I can even help create a PR)