General beast update, fixes, optimizations, features:

* Clean ups, optimizations, and new File::commonDocumentsDirectory enum
* Replace sortArray with std::sort for performance
* More error tolerance in XML parser, speedups
* Refactor some byte-order mark detection code
* Add String::appendCharPointer overloads
* More XML parser optimisations and better error detection
* Misc performance tweaks
* Fixes for support of non utf8 strings
* Increased precision when storing strings in XmlElement
* Minor clean-ups
* Minor fix to XmlDocument
* Cleanups to CriticalSection and related synchronization primitives
* Fix DynamicArray unit test

modules/beast_core/maths/beast_BigInteger.cpp

@@ -951,7 +951,9 @@ String BigInteger::toString (const int base, const int minimumNumCharacters) con
 void BigInteger::parseString (const String& text, const int base)
 {
     clear();
-    String::CharPointerType t (text.getCharPointer());
+    String::CharPointerType t (text.getCharPointer().findEndOfWhitespace ());
+
+    setNegative (*t == (beast_wchar) '-');
 
     if (base == 2 || base == 8 || base == 16)
     {
@@ -992,8 +994,6 @@ void BigInteger::parseString (const String& text, const int base)
             }
         }
     }
-
-    setNegative (text.trimStart().startsWithChar ('-'));
 }
 
 MemoryBlock BigInteger::toMemoryBlock() const