the LAYOUT option and minor modifications
improved abbrv for list; factorized code for toHTML(); reverted modifications to bib2html and created bib2links() instead.
keys
merged with Martin's changes
merged with monperrus/bibtexbrowsed@17dbef223df40c11d536796d8d3c8453c045e9df. Simplified and improved the "keys" search option. Now uses a new ABBRV_TYPE option, prints a correct title, can read $_GET from the url. New function to sort by raw Abbrv.
Merge remote branch 'monperrus/master' into keys
adds the option keys for selecting multiple entries

based on a list of specified entries. This is compatible with other search criteria, as it is implemented as an extra filter rule in multisearch(). This is useful for presenting a selection or short-list of bibtex entries (eg, on a homepage, in a research project page, etc...)

$_GET['keys'] should contain a url-encoded json-encoded array of bibtex entries.

With @define(ABBRV_TYPE,'keys-index'), the array in $_GET['keys'] is considered as an associative array "$abbrv=>$bibkey" and $abbrv is used for abbreviation.
Merge