typo

Signed-off-by: Mattias Andrée <maandree@operamail.com>
Balloon.{fromfile ==> fromFile}

Signed-off-by: Mattias Andrée <maandree@operamail.com>
doc balloon.py

Signed-off-by: Mattias Andrée <maandree@operamail.com>
move documentation to be below the declaration and not above, this makes it parsable by python's help command, althought it is not as pretty, but hay, help() is awesome

Signed-off-by: Mattias Andrée <maandree@operamail.com>