Updated doxygen config to use relative path.
Updated doxygen config to use relative path.

cedral/aws-sdk-cpp,cedral/aws-sdk-cpp,awslabs/aws-sdk-cpp,cedral/aws-sdk-cpp,jt70471/aws-sdk-cpp,aws/aws-sdk-cpp,aws/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,jt70471/aws-sdk-cpp,svagionitis/aws-sdk-cpp,svagionitis/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,ambasta/aws-sdk-cpp,jt70471/aws-sdk-cpp,svagionitis/aws-sdk-cpp,awslabs/aws-sdk-cpp,svagionitis/aws-sdk-cpp,ambasta/aws-sdk-cpp,jt70471/aws-sdk-cpp,ambasta/aws-sdk-cpp,svagionitis/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,cedral/aws-sdk-cpp,aws/aws-sdk-cpp,awslabs/aws-sdk-cpp,jt70471/aws-sdk-cpp,ambasta/aws-sdk-cpp,JoyIfBam5/aws-sdk-cpp,awslabs/aws-sdk-cpp,aws/aws-sdk-cpp,aws/aws-sdk-cpp,jt70471/aws-sdk-cpp,svagionitis/aws-sdk-cpp,cedral/aws-sdk-cpp,aws/aws-sdk-cpp,cedral/aws-sdk-cpp