masks are created by deepness level
remove pivotal-tracker mention from README, since it's not used
seems to be proper fix to masks
fix scaling calls
somehow back-context needs additional registration-point shift
fix disposing mask canvases
comment back the reg-point shift
fix width/height replacement
doubling canvas is back, temporarily
change snapshot path for go page in production
fixes for importer to skip not-found-elements, empty paths and invalid scripting code
fix path import issue
Merge pull request #159 from Animatron/trying-optimisations

Mask fixes