doc: bumped version to 0.10.2.

doc: release 0.10.1.

doc: updated the docs of get_phase() for the "ssl_cert" context.

bugfix: fixed compilation errors with nginx 1.9.11+. thanks Charles R…

…. Portwood II and Tomas Kvasnicka for the report in openresty#669 and openresty#668, respectively.

doc: bumped version to 0.10.0.

doc: fixed the literal asterisk escaping in the correct way.

fixed a C compiler warning on FreeBSD introduced in the previous commit.

bugfix: fixed a compiler warning on type mismatch when dtrace USDT is…

… enabled in the build.

bugfix: fixed compiler warnings "comparison between signed and unsign…

…ed integer expressions" on Windows.

bugfix: fixed a potential data alignment issue in the ngx.var setter …

…API.