drop basis.data.property.AbstractProperty as never used

Patch https://gist.github.com/lahmatiy/5896201
remove unnecessary event name in SUBSCRIPTION.addProperty calls
local variable rename
don't use custom constructor for basis.data.Value, but use it for basis.data.property.Property
if html token is not resolved left it as is
fix broken test (basis.data.property.Property#set behaviour was changed)
Fixes #8