Changes

* pop: pop value off of the FILO (can be used in place of a number block)

* pop: pop value off of the FILO (can be used in place of a number block)

* empty heap: empty the FILO

* empty heap: empty the FILO

* Python: a programmable block (can be used in place of a number block)

* Python: a [[#Python_function_block programmable block]] (can be used in place of a number block)

:: add your own math equation in the block, e.g., sin(x); This block is expandable to support up to three variables, e.g. f(x,y,z)

:: add your own math equation in the block, e.g., sin(x); This block is expandable to support up to three variables, e.g. f(x,y,z)

* Import Python: import Python code from the Sugar Journal (a more general-purpose programmable block)

* Import Python: import Python code from the Sugar Journal (a more general-purpose programmable block)