Add a new static analysis tool for Android/iOS code in ReviewBot.
FBInfer is essentially another static analysis tool, like pep8 or pyflakes, that provides automatic feedback on bugs in Android/iOS apps. 
This feature will add support for code written in Java, Objective-C, and C, so that Review Bot can automatically provide bug feedback regarding a review request in these languages. This is a useful tool for Review Bot to have because as of now, there are only tools for code written in Python and C++. Because a lot of programmers use Java, Objective-C, and C, especially for mobile development, it would be helpful for Review Bot to provide support for such languages.

I have tested using a local server and instance of ReviewBoard. From the testing I did, FBInfer didn't seem to be working at all to compile and provide feedback of the files.