[Rachana] Adjust dotreph position for some glyphs

Signed-off-by: Rajeesh K Nambiar <rajeeshknambiar@gmail.com>
[Meera,Rachana] Release 6.0-RC

Signed-off-by: Rajeesh K Nambiar <rajeeshknambiar@gmail.com>
[Rachana] Dotreph Right Bearing adjustment

Right bearing of dotreph was adjusted to zero.