bump version [2.1.2]

fix npmignore (wmfe#146)

Build dist2.0 at Fri Jun 30 09:02:31 UTC 2017 by circleci[skip ci]

Build dist2.0 at Fri Jun 23 14:46:47 UTC 2017 by circleci[skip ci]

Build dist2.0 at Thu Jun 8 05:58:51 UTC 2017 by circleci[skip ci]

Build dist2.0 at Sat May 27 10:39:04 UTC 2017 by circleci[skip ci]

Build dist2.0 at Mon May 22 05:28:13 UTC 2017 by circleci[skip ci]

bump version (wmfe#118)

Build dist2.0 at Tue May 9 04:10:19 UTC 2017 by circleci[skip ci]

Build dist2.0 at Fri May 5 03:15:50 UTC 2017 by circleci[skip ci]