Updating source version to 1.9.2-pre
dojox/mobile/_StoreMixin badly maintains its promise observation handle, fixes #17407

(cherry picked from commit 663178d0583302612922bf7e52b30e651e8a70ba)
fixes #17363 dojox/mvc _startAtWatchHandles called twice. Thanks to Adrian Rakovsky CLA.

(cherry picked from commit f6cc3c968e34bd3b90c7b7579faaa3eedd8e381f)
Fixes #17417. IE11 support. Thanks Sebastien Brunot (IBM, CCLA)
(cherry picked from commit bd6a44b9ca37ada7700d021f6717f64ad1eaf232)
Fixes #17416. Fix detection of finger move after change of direction of scrolling. Thanks Sebastien Brunot (IBM, CCLA)
(cherry picked from commit c895d8004e4d05a6fec50edd36abab33a46b43fe)
Merge branch '1.9' of github.com:dojo/dojox into 1.9