PCRE (on Emscripten) for browser

• used https://github.com/orzFly/pcre.js as a base
• added UMD for proper requires and imports
• updated emscripten and provided emsdk build example script
• fixed small fixes while using newer emscripten (--enable-utf8 => --enable-utf etc.)
• added --enable-unicode-properties for unicode properties

Build/Development

To rebuild dist:

./bin/build_pcre.sh

git clone https://github.com/juj/emsdk.git
./bin/build_emsdk.sh

./bin/build.sh

Some parts of build might be cached, on rerun:

./bin/build_emsdk.sh

./bin/build.sh