Implement build server

[Igor Santos]

http://net.tutsplus.com/tutorials/javascript-ajax/meeting-grunt-the-build-tool-for-javascript/

[Igor Santos]

• adding Grunt. Usage: first install grunt and grunt-cli: 'sudo npm install -g grunt-cli; npm install', and then you can run tasks such as 'grunt watch' that currently only compiless Less files, 'grunt jasmine' to run specs inside a tests/ folder, or simply 'grunt' to compile everything into a 'dest' folder, and run tests. See the GruntFile for all the tasks. refs #52

→ <<cset 5ab13ca3d3d9>>

[Igor Santos]

• adding imagemin and htmlmin tasks, and improving dist process. refs #52

→ <<cset 925c9cbf2ce2>>

[Igor Santos]

• adding git hook used by the server for deploying. closes #52

→ <<cset 3fea92ee46c1>>