Modified callback page to display better response

Due to Chrome 36+, they decided to reenforce javascript on closing
windows. For now, I change the landing page to request the user to
close the page rather than `waiting…` instead.
Disable logging of jetty

Should not be viewable by the user
code tag for A0119504L
Merge branch 'master' of https://github.com/cs2103aug2014-w11-4j/main
rewrite code tag for A0119504L
Merge branch 'master' into output_format
Revert "Added code tagging for Jason"

This reverts commit 2670635352612e23222f2c885acf70ec09438b5d.
Revise and Formatted Code Tagging
Revised Code Tagging for Test Cases
Add display of previous SEARCH/VIEW after error
Remove redundant message
Refactor Tagging
Added display of previous view from InvalidCommand
Modified InvalidCommand for flexibility
Merge branch 'output_format'
Refactor New Line
Save last sync time on Google Calendar
Temporarily ignore tentative tasks
Implement two-way sync
Merge branch 'export_support'