undo changes made in last commit for testing

fix issues with duplicate entries pulling from zeus data source

change sanitization to scraping side to avoid duplicated work

refactor API to speed up search, add in-line highlighting, clean up innerHTML rendering

add utils file

fix bug with saving to local records and add gzip compression when sending data over network

fix inconsistencies with saving previously processed/old data into inverted index

clean up podcast source implementation

fix bug last commit didn't, using arrow keys to navigate triggers re-render and add podcast source

fix bug with search results lagging if navigating with keyboard

update README with more information on `Add Data`

Merge branch 'master' of https://github.com/amirgamil/apollo

update README instruction for how to install

Merge pull request #5 from vishalsodani/master

add modals for successfully adding data, fix readme