added GET /sources/1 handler
added GET /sources/1 handler

mikedewar/st-core,nytlabs/st-core,nikhan/st-core,mikedewar/st-core,mikedewar/st-core,nytlabs/st-core,nytlabs/st-core,nikhan/st-core,nikhan/st-core,mikedewar/st-core,nikhan/st-core,nytlabs/st-core