The cursor now goes either after the first open parenthesis or at the
end of the command.
Fixed z.real and z.imag.
Change-Id: I46ca3be0415832fd91273ca7fed12ed3d6f125dc
When the user types a letter, the toolbox scrolls to the first row that begins
with said letter (without considering if it is lower or upper case). If
there is not such a row, the toolbox scrolls to the first row that has a
letter higher than the typed letter.
Change-Id: I353d23560d8a4d618d96426c393b024e7fb487af
