0.5.6 Alpha1

changes:

- removed *Readout and *Input block modes (use protectedCanvasPart instead)

new features:

- options gui improvements
	- url specific values can be added by hitting enter in the input
	- highlight "hide" icon when "tabbing" to it
	- made url specific values manageable with "tabbing"
- added setting "protected canvas part" to decouple block mode from part
- added "share persistent randomness between domains"

fixes:

- constant rng did not work properly when protecting input

known issues:

- if a data URL is blocked the page action button does not appe