Add support to canvas and image methods for a single object or string argument. Where a string is specified the method treats it as the value and all configurations use their default values.
This change has been applied but the new save method (added as part of #8) will require further testing as it can accept a second string argument before callback.
Add support to
canvas
andimage
methods for a single object or string argument. Where a string is specified the method treats it as the value and all configurations use their default values.