Contributing to BbMath

First setup

You need XenForo 2.x. You can setup a Scotch Box environment as described in the Xenforo 2.x Development Documentation
Fork BbMath
Move in the src/addon/ folder of your development enviroment and mkdir Inforge && cd Inforge
git clone https://github.com/<your-username>/BbMath && cd BbMath
git remote add upstream https://github.com/InforgeNet/BbMath

Pull request

Each time you want to submit a pull request, do the following:

Download latest upstream modifications: git fetch upstream
Ceate a new branch: git checkout -b whatever-you-want-feature upstream/master
Make you changes, add them and commit
git push -u origin whatever-you-want-feature
Visit https://github.com/<your-username>/BbMath and create a new pull request

Commit message

Follow these guidelines to write a proper commit message: How to Write a Git Commit Message.

Code style

General guidelines:

Indent code with a single tab
Avoid brackets when they are not necessary
Try to keep lines under 80 columns, assuming a tab width equal to 8 spaces (yes!)
Follow the XenForo 2.x code style conventions
In general, I like the Linux Kernel Coding Style and try to adapt it to PHP, JS and every other C-like language
Check out the code already in the repository and try to follow the same style
Use common sense