Enable Safari (WebKit) compatibility

[Frederico Caldeira Knabben]

Introducing the appropriate browser sniffing in the integration files to enable WebKit 522 (Safari 3) compatibility.

Generic rules for the user agent sniffing:

1# Check: Is Safari?

Check if " AppleWebKit/" is in UserAgent.

2# Check: Is compatible Safari version?

Get the number after " AppleWebKit/". It must be >= 522.

[Frederico Caldeira Knabben]

The JavaScript implementation has been introduced with [833].

[Frederico Caldeira Knabben]

I mean... The JavaScript implementation has been introduced with [883], not [833].

[Wiktor Walc]

Done with [886],[887],[888],[889],[890],[891],[897].

AFP version has not been tested yet because I couldn't integrate AFP on my computer neither with Apache 2 nor IIS 5.0...

AFP and lasso versions don't use regular expressions to get AppleWebKit version, so we are safe until 1000 release.

[Frederico Caldeira Knabben]

Sönke, our AFP maintainer, confirmed that the code is correct. He just pointed out that there could be issues with server configured to use commas for decimals separations. He proposed a solution... I've applied it with [907].