Install del dependence
Install del dependence

gulpfile需要del包但是init的时候未安装。
pombredanne/fireball,abhishekgahlot/fireball,takaaptech/fireball,bright-sparks/fireball,yinjun322/fireball,yinjun322/fireball,yorkie/fireball,bright-sparks/fireball,yinjun322/fireball,takaaptech/fireball,pombredanne/fireball,bright-sparks/fireball,takaaptech/fireball,yorkie/fireball,abhishekgahlot/fireball,yorkie/fireball,pombredanne/fireball,abhishekgahlot/fireball