[Jenkins][ci skip] Add [ci release xxx] command
[Jenkins][ci skip] Clean workspace before debug build or release build
[Jenkins][ci skip] Git fetch tag
Merge pull request #6347 from lmskater/add-ci-release-command

[Jenkins][ci skip] Add [ci release xxx] command
Fixed bug of gui reader
fixed drawDebugData of LabelBMFont/LabelAtlas.
Merge pull request #6355 from nutty898/develop_nutty_fixedbugofguireader

Fixed bug of gui reader
Merge pull request #6356 from Dhilan007/develop_v3

fixed drawDebugData of LabelBMFont/LabelAtlas.
Merge pull request #18 from cocos2d/develop

Sync Cocos2d-x 3.0 final