add a function that uses replace() to replace all
instances of '<' and '>' with the HTML entities and use
this wherever the query text is added onto the page.
this fixes a safari-only bug in which encoded chars were inserted
into the search string.
http://b/issue?id=2031559
Change-Id: Ie60902bafcbb327d488b921f8d3925aaf9ff0566
this adds a parameter to the URL hash on all search queries.
the main motive is to allow searches from the blog to automatically open the blog tab.
Change-Id: Ib81896948e63e8173d521713496bb98065683ce7
