Imports of package tests

PathSynopsis
github.com/bitly/go-simplejson
io/ioutilPackage ioutil implements some I/O utility functions.
netPackage net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
net/httpPackage http provides HTTP client and server implementations.
osPackage os provides a platform-independent interface to operating system functionality.
os/execPackage exec runs external commands.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.
testingPackage testing provides support for automated testing of Go packages.
timePackage time provides functionality for measuring and displaying time.