Minor changes
Removed mixins.less from jasny-bootstrap.less
Handle undefined body style in OffCanvas.disableScrolling(). Fixes #214
Change input mask character for alphanumeric to w.
Change docs for inputmask.
Fixes #237
Fixed customizer. Fixes #233
Bump version to 3.1.3
Merge remote-tracking branch 'origin/master'
Build new release