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

update to create config file which is independent from actual install…

Writer flush api

Issue 889 pretty writer

Missed PrettyWriter in the initial fix for Issue #889

This is helpful if you’re writing code that needs to control flush
behavior and you don’t want to pass around your buffer object to each
handler function alongside the writer. Seems like an easy convenience
to add.

Merge back

v_ has a value assigned to it as part of ParseNext() which happens in
the constructor, but that’s not soon enough for GCC

GCC and Clang cannot agree on what constitutes a good switch statement.

Issue 889

Fix clang -Wswitch-enum warnings.
Made NextArrayValue() more robust—now handles error state correctly,
will enter error state if an unexpected state is reached.
Made separate states for each value type to simplify getters.
Simplified implementation of skipping arrays and objects.
Skipping an object now works whether you’ve retrieved the key or not.

It did not support char arrays.

Lookahead Parser