Disable range request loading for safari.
Merge pull request #3315 from brendandahl/disable-range-safari

Disable range request loading for safari.
Fix check for instanceof Uint8Array in IE9 

Fix #2687 and #2617
Merge pull request #3334 from benbro/master

Fix check for instanceof Uint8Array in IE9
Load all resources before getOperatorList/getTextContent.
Merge pull request #3289 from brendandahl/resource-loader2

Load all resources before getOperatorList/getTextContent.
Fix the positioning of the progressive loadingBar