Log Message:
Update to 0.19
Add missing DEPENDS

Upstream changes:
0.19    2016-11-08 08:08:16 Europe/Copenhagen
 - The standard is not clear on this, and some servers don't allow them, but it \ 
seems that DELETE can take a request body.
 - Added serializer_options so it's possible to instantiate the serializer w/ \ 
parameters
 - Fixed "Use of uninitialized value in concatenation (.) or string" \ 
warning when $self->server is not initialized
 - Changes for rt #118413. Thanks to abraxxa
   http_headers return a combined hashref of http_headers and persistent_headers
   new method, clear_all_headers