Move xhr.open() up
Add Jsonary.beforeAjax(callback)
Basic data URL support
Improve data.json(), allow indent
Fetch header values *before* key normalisation
Add extra headers to browser
Update package
Update adaptive table renderer
Add optional baseUri for createData()

If a Jsonary Data object is supplied for "origValue", then it falls
back to the URI from that data.
Change tag-list renderer to reflect scheama.baseURI() changes
Update bundle
Change readOnlyCopy() base URIs

Uses resolveUrl(), which accounts for "self" links.
Update bundle
Refactor createSubmissionData
Update bundle
Update list-links renderer
Add route plugin
Update location plugin

`Jsonary.location.base` was omitted when using `replace()`.
Style tweak
Add string formats to core package