GetTaskPasteIn: Return all tables
Description
This function returns a list of all tables in .GlobalEnv,
including those within lists.
Usage
GetTaskPasteIn(theFrame, dat,
insert.row, insert.col,
do.rownames=F,
do.colnames=F,
do.coercion=T)
Details
This is a helper function used to generate a task list to allow reversible
pasting of data into the frame.