Added web scraper client (not working yet)
Added web scraper operation and client
Added documentation
Updated README
Change load libraries to accept local files
Changed when condition to accept number of seconds as well
Revert "Change load libraries to accept local files"

This reverts commit 3c13ee5957c356fc9f64a6c7e9e3dd66b611ee8b.
Set a property to configure the number of tries for when condition
Changed libraries and evaluation array to not mutable in client
Added activity indicator manager to manage spinner in status bar when operation is executing
Updated example to have concurrent operations