Corrects the module namespace from "masquerade_X" to "masquerade_context" for context's hooks.
This also fixes a bug I created in 7.x-1.1 by moving the context hooks to masquerade_context.context.inc.
Includes context hooks via masquerade_context.context.inc (through the .module).
See #1674032: Utilize hook_hook_info so module code can be placed in X.context.inc