build
Merge commit '5161fc0e7b2211d713e36115c399bd3ff0888c85' into develop

Conflicts:
	target/gls2.js
Merge commit '3f8a12974ce2e72a12b0da03c9a2b78767242a51' into develop
Merge commit 'af666d736710cd21a72a82f14ace80e0cc4127c2' into develop
ex mode difficulty down
add setting bullet appearance
bug fix
iro iro
できねー！