Added Data analysis class
Updated Walker class to add author info
Add RESTful URI pattern.
Added about page
Added about css style sheet
Updated REST design
Added images folder
Added style sheet folder
Updated main.css
Updated AccWalker to plot raw data
Fixed wording in about.html
Add rawPanel in index.html
Added .gitignore file
Untracked unnecessary directories and files
Updated .gitignore and track directories and files
Untracked app generated files
Untracked cache files 
Update .gitignore file
Updated .gitignore file
Added comments to AccWalker.java
updated gwt log