Log Message:
hub: Update to 2.14.0

Changes:
2.14.0
------
Features:
 * New command: `hub issue update` #2432
 * New command: `hub issue transfer` #2363
 * Support git flag `hub version --build-options` #2440
 * Refuse to follow HTTP 301/302 redirects for non-GET requests #2442

Fixes:
 * Fix `hub help <cmd>` on Windows #2384
 * Ensure that `grep` command is being used in shell completions #2390
 * Consult global `git config color.ui` setting when `--color=auto` #2378

Improvements:
 * Print more user-friendly HTTP 40x errors #2446
 * Enable debugging file uploads via `HUB_VERBOSE=1 hub release create -a \ 
<file>`
 * Improve parsing malformed YAML config files #2380