add a cachable example
remove execute param ambiguity
make api fields protected instead of private
add a utils class for easy printing, add an authenticator module for signing messages
add query string requirement
add support for POST multi-part
allow get client to be overridden
make adapter class create the POST request
allow apitask to be cancellable
abstract background call
make apicache implement clear
update example activity to handle clear and create post request
Merge branch 'develop'