Make Things Easier to Modify

[MrMagma]

This pull request is intended to make the project more modular and easier to add features to.

Changes

• Add gulp, browserify, babel, and the JSX and ES2015 babel presets. This will take the responsibility for compiling JSX off of the client and allow us to use import statements.
• Change project structure a bit to make finding things to transpile easier.
• Switch React dependency from a directory to a node module.
• Add .jshintrc and .gitignore files.
• Use 4-space indentation in all HTML and JS files.

[kevinbarabash]

@MrMagma thanks for adding a build system. I'd prefer webpack with hot reloading, but this should do for now.

[camsc]

@MrMagma This is great! Thanks.