Fixed #985 : Unittest failed with MinGWx64. And few small improvement were done while looking for mistakes.

Problem was because of Windows uses backslashes '\', not Unix '/'

Fix patternProperties & additionalProperties lead to ASSERT

Fix #825

Fixup #964 by forwarding copyConstStrings recursively

As reported by @Llerd in #962, the `copyConstStrings` parameter
has not been forwarded recursively to the constructors of
object members and array elements.

Storage class is not first - encodings.h

If storage class is not specified as first in declaration then Intel C++ Compiler 2017 generates message:
message #82: storage class is not first

GenericValue::CopyFrom: add option to force copying of strings

Copying the result of an in-situ parsing into another value/document
currently requires that the original buffer - still holding the strings
from the parsing, outlives the  destination object as well.

In order to obtain a "full" copy of a GenericValue, this commit adds
an optional flag `copyConstStrings` to `CopyFrom`, which then forces
to take a copy of all embedded strings in the source value.

This solves the problem discussed in #962.

typo

See #930

Add convenience method Key(std::basic_string<Ch> const&) to Writer

Add fallthrough attribute to suppress GCC 7.1 warning

typo

Added ARM-Neon support for SIMD.SkipWhitespace*

Minor fixes

Change-Id: Iaf210d029758723a7eeb7f28fc10cab7467889a9
Signed-off-by: Jun He <jun.he@arm.com>

Fix a non-type template parameter type mismatch

RAPIDJSON_STATIC_ASSERT: use C++11 static_assert, if available

This issues a warning in gcc7.

Fix #910 incorrect casting

Fix #905 unable to set writeFlags for PrettyWriter

Fixed bug on space hexadecimal encoding

fix typos in doc code