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removed welcome controller
updated to CI 2.2
added test view file; some CI library files
added carousel to test page
fixed typography issues on splash page
updated css
updated test view
Updated nav layout
updated general layout (2)
updated home page layout
updated splash even more

added background and footer bg files
added icons in footer; justified text
front page text layout change
added content to view_classes
added classes content
Merge pull request #4 from lehanhua/develop

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