Using build tags in order to test timeout related code changes to goon

Conflicts:
	timeout.go
Revert "Using build tags in order to test timeout related code changes to goon"

This reverts commit 3497e755ba83781c1a264c21ec6dc599a0abab88.
Merge pull request #19 from mzimmerman/memcachevariance

Doing simple variance management on putMemcache()
Implementing using appengine.Timeout for memcache.Get variance in GetMulti
Merge branch 'master' of https://github.com/mjibson/goon into memcachevariance
Updating documentation to reflect memcache variance features
Document new memcache limits
Merge branch 'master' of https://github.com/mjibson/goon into memcachevariance

Conflicts:
	goon.go
Updating documentation for the memcache variance feature
Merge branch 'memcachevariance' into memcachevariancetesting
Removing the unneeded reference to the appengine_internal.CallError struct