Merge pull request #66 from wykhuh/feat/languagePage

(Feat/language page) Able to see four different charts with multiple languages.
Refactored entire code to use nvd3 directives and created factories for getdateandCommits and getUserCommitsperLanganguage .
Merge pull request #67 from Chunhao137/myGithubscot

(feat/user page) Refactored entire code to use nvd3 directives and created factories
No modifications
Merge branch 'master' of https://github.com/GoldenLions/GoldenLions into myGithubscot
Added functionality so that on click of compare user, second set of data will plot along side first for bar chart
Merge pull request #68 from Chunhao137/myGithubscot

(feat/user page) Able to display second user on click of button with fake data
adding loading status
Merge pull request #69 from kwalker3690/loading

(feature) adding loading status
Modified user bar graph to display only by year and month for past year. Added legends and graph titles to display on click of compare users.
Modified user bar graph to display only by year and month for past year Added legends and graph titles to display on click of compare users.
Modified code
Merge branch 'master' of https://github.com/GoldenLions/GoldenLions into myGithubscot

Conflicts:
	client/user/user.js
Modified user bar graph to display only by year and month for past
year.
Merge pull request #70 from Chunhao137/myGithubscot

(feat/user page) Changed bar graph to display by year/month and display title and legends
(refactor) Refactor language page. Add fetchLanguage() to services.