add single quotation marks to 'getSource' result and 'setSource' parameter

Signed-off-by: marshalys,user.email=marshalys@gmail.com <yuanshuai@jiandan100.cn>
add single quotation marks to 'getSource' result and 'setSource' parameter
Merge branch 'master' of github.com:marshalys/phalcon-devtools
Merge git://github.com/phalcon/phalcon-devtools
add mapcolumn option for gen 'Independent Column Mapping' code
change comment of property
Merge pull request #70 from marshalys/master

add mapcolumn option for gen 'Independent Column Mapping' code