Added support for the help (comments) to have support custom multiple lines.

e.g
f.set_option(val, 1, keys='database', 	help='val 1 = MySQL\r\nval 2 = SQL Server\r\nval 3 = Oracle')

will generate
# val 1 = MySQL
# val 2 = SQL Server
# val 3 = Oracle
val = 1

Signed-off-by: Hafiz Bistar <hafiz@esace.com>
Merge branch 'master' of github.com:hafizbistar/cfgparse