Fixes #4489 - Max width and height for left image icons is 16px.
Fixes #4489 - Max width and height for left image icons is 16px.

hinaloe/jqm-demo-ja,npmcomponent/cbou-jquery-mobile,startxfr/jquery-mobile,npmcomponent/cbou-jquery-mobile,hinaloe/jqm-demo-ja,startxfr/jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/uglymongrel-jquery-mobile,arschmitz/jquery-mobile,npmcomponent/cbou-jquery-mobile,arschmitz/jquery-mobile,arschmitz/jquery-mobile,startxfr/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,arschmitz/uglymongrel-jquery-mobile