Restore edit feature for page search results

By default it showed and edited the highlightText property of an annotation not the text. Besides that the only thing to do is to rebuild the highlighttext after the text has been edited.
Restored reply functionality for page search results

The editor itself was shown, but the surrounding div tag was hidden.
Bugfix for rebuildHighlightText()

It tried to apply regexps even when they were not set.
VS fix
Bugfix for SearchController.refresh: highlightQuote was not refreshed

After changing the search term from a quote to another, the quote highlights were not refreshed
Correctly show or not show quotes for page search results

The page_search template assigned a bad variable for ng-init to collapsed, so it was always showing the quotes for every search results.
It is now fixed. (Showing only for quote matches)
Merge pull request #637 from hypothesis/restore-edit-reply-delete-for-search

Restore edit reply delete for search