record_loader can optionally parse 'request' records
archiveindexer has -a flag to write all records ('request' included),
-p flag to append post query
post-test.warc.gz and cdx
POST redirects using 307
crossorigin as it may interfere with loading rewritten content, add
tests for html and lxml parsers
add server_cls as optional param to QueryHandler.init_from_config()
for easier customization
views: dont create template if empty template file specified