Fix validation of a forcedVisitorId value by using unsigned int type.

[eligutovsky]

Found that setting a forcedVisitorId with the hex values of more than "7999999999999999" cannot be valid in the current implementation. The solution is just to use UInt64 instead of Int.

Example:

var a = "7999999999999999"
var b = "8000000000000000"

Int(a, radix: 16) /// Value is 8762203435012037017
UInt64(a, radix: 16) /// Value is 8762203435012037017


Int(b, radix: 16) /// Value is nil
UInt64(b, radix: 16) /// Value is 9223372036854775808

[brototyp-bot]

	1 Warning
⚠️	Are there any changes that should be explained in the README.md?

Generated by 🚫 Danger

[eligutovsky]

@brototyp A half of forsedVisitorIDs does not work properly. Can you release a hotfix for PR?
In another way, I would fork and specify a git for a Matomo dependency at my SDK. But there is some limitation for a Cocoapod podspec file:

Podspecs cannot specify the source of dependencies. The `:git` option is not supported. `:git` can be used in the Podfile instead to override global dependencies..

[brototyp]

Oh shoot. Great catch! Do you mind adding a note in the Changelog? I am fine preparing a release during the week.

[brototyp]

Cheers!

[brototyp]

I am pushing the 7.0.1 release to CocoaPods right now.