core:
 * Support Widget Annotation Buttons not linked to any Form
 * SplashOuputDev: Use stroking opacity when clipping to a stroke path
 * Handle 1 bit RGB images in ICC colorspace
 * Internal code improvements

qt5:
 * Add Document::signatures. Returns signatures not attached to any page
 * ArthurOutputDev: Fix font hinting
 * ArthurOutputDev: Set the opacity when filling with axial gradients
 * ArthurOutputDev: Implement the clipToStrokePath method
 * ArthurOutputDev: Use stroking opacity when clipping to a stroke path

glib:
 * Add poppler_page_get_bounding_box
 * Add poppler_form_field_get_alternate_ui_name
 * Implement rotation for 'flagNoRotate' annots. Issue #767

cpp:
 * Add non_raw_non_physical layout for page::text()

utils:
 * pdftohtml: Fix noRoundedCoordinates->noroundcoord in man page
 * pdfsig: Show also signatures that aren't attached to any page