FIX: File upload should not use receiveBodySize.
REFACTOR: JSON

    Rename mprGetJson to mprGetJsonObj
    Rename mprGetJsonValue to mprGetJson
    Add MPR_JSON_OVERWRITE capability to mprBlendJson
    Improve json unit tests.
CLEANUP
FIX: Redirect to https://

Fix mapping localhost and 127.0.0.1 when doing redirect to https
FIX: GC marking of route var value

Was (static and not allocated).
FIX: Uri completion when missing port or host.
DOC: regen.