2.1.5

support no rtti and some small fix.

2.1.3

1. supports multithread by default.

2.1.2

changed folder structure --

1. moved header file to directory "include/promise-cpp/"
2. moved header only source code into "promise_inl.hpp"

2.1.1

1. support used as as static/shared library or headonly (with PROMISE_HEADONLY defined)
2. fixed doWhile()
3. can rethrow exceptions.

2.1.0

Merge branch 'master' of https://github.com/xhawk18/promise-cpp into …

1.0.3

small bug fix

1.0.2

can reject doWhile loop