pass data token at job submission and store the token in mongodb
data token checkout api and awe-client workstealer fetches data token if needed (workunit.Info.Auth==true)
dataMover in awe-client fetches private input data with data token
awe-client upload data to shock with data token
awe-server passes token when creating empty node in Shock
awe-server passes token when request GET for a shock node
awe-server passes token when creating index for a shock node
add api to set data token after job submission; task.Info gets job.Info with token
awe-client passing token for data (tested)
clean debug log; test creating index without curl
Merge pull request #96 from wtangiit/master

support authentication for private shock data access (token passing model)