Created by: dzhwinter

To meet our release goal, here we list the minimum requirements for each component.

Op requirements

• Feed Op, Fetch Op
• embedding (look up op) @qingqing01 (dense table)
• crf op @lcy-seso doing
• viterbi decoding op @lcy-seso doing
• lstm op @qingqing01 doing
• momentum, sgd op
• regularization op @abhinavarora doing