[Android] Refine the help information of packaging tool.
[Android] Refine the help information of packaging tool.

Group the options according their usage.

BUG=https://crosswalk-project.org/jira/browse/XWALK-666

rakuco/crosswalk,TheDirtyCalvinist/spacewalk,XiaosongWei/crosswalk,hgl888/crosswalk,weiyirong/crosswalk-1,leonhsl/crosswalk,zeropool/crosswalk,Pluto-tv/crosswalk,seanlong/crosswalk,heke123/crosswalk,lincsoon/crosswalk,marcuspridham/crosswalk,TheDirtyCalvinist/spacewalk,stonegithubs/crosswalk,leonhsl/crosswalk,darktears/crosswalk,zliang7/crosswalk,tedshroyer/crosswalk,amaniak/crosswalk,marcuspridham/crosswalk,jondwillis/crosswalk,zliang7/crosswalk,tomatell/crosswalk,zliang7/crosswalk,zliang7/crosswalk,weiyirong/crosswalk-1,xzhan96/crosswalk,tomatell/crosswalk,seanlong/crosswalk,mrunalk/crosswalk,siovene/crosswalk,rakuco/crosswalk,dreamsxin/crosswalk,crosswalk-project/crosswalk,minggangw/crosswalk,chuan9/crosswalk,dreamsxin/crosswalk,Pluto-tv/crosswalk,PeterWangIntel/crosswalk,ZhengXinCN/crosswalk,huningxin/crosswalk,RafuCater/crosswalk,DonnaWuDongxia/crosswalk,crosswalk-project/crosswalk,Pluto-tv/crosswalk,siovene/crosswalk,DonnaWuDongxia/crosswalk,hgl888/crosswalk,Pluto-tv/crosswalk,fujunwei/crosswalk,Bysmyyr/crosswalk,mrunalk/crosswalk,crosswalk-project/crosswalk,jondwillis/crosswalk,seanlong/crosswalk,myroot/crosswalk,pk-sam/crosswalk,stonegithubs/crosswalk,baleboy/crosswalk,marcuspridham/crosswalk,zliang7/crosswalk,myroot/crosswalk,heke123/crosswalk,minggangw/crosswalk,jondwillis/crosswalk,weiyirong/crosswalk-1,huningxin/crosswalk,siovene/crosswalk,amaniak/crosswalk,hgl888/crosswalk-efl,qjia7/crosswalk,hgl888/crosswalk,fujunwei/crosswalk,baleboy/crosswalk,ZhengXinCN/crosswalk,hgl888/crosswalk,marcuspridham/crosswalk,crosswalk-project/crosswalk,minggangw/crosswalk,crosswalk-project/crosswalk-efl,chinakids/crosswalk,seanlong/crosswalk,axinging/crosswalk,amaniak/crosswalk,qjia7/crosswalk,PeterWangIntel/crosswalk,baleboy/crosswalk,fujunwei/crosswalk,stonegithubs/crosswalk,baleboy/crosswalk,huningxin/crosswalk,alex-zhang/crosswalk,heke123/crosswalk,stonegithubs/crosswalk,pk-sam/crosswalk,TheDirtyCalvinist/spacewalk,XiaosongWei/crosswalk,mrunalk/crosswalk,rakuco/crosswalk,XiaosongWei/crosswalk,jondong/crosswalk,zeropool/crosswalk,tedshroyer/crosswalk,axinging/crosswalk,minggangw/crosswalk,stonegithubs/crosswalk,DonnaWuDongxia/crosswalk,zeropool/crosswalk,jondwillis/crosswalk,XiaosongWei/crosswalk,siovene/crosswalk,baleboy/crosswalk,hgl888/crosswalk,hgl888/crosswalk-efl,dreamsxin/crosswalk,dreamsxin/crosswalk,chuan9/crosswalk,zliang7/crosswalk,qjia7/crosswalk,huningxin/crosswalk,rakuco/crosswalk,RafuCater/crosswalk,hgl888/crosswalk,shaochangbin/crosswalk,zliang7/crosswalk,bestwpw/crosswalk,chinakids/crosswalk,TheDirtyCalvinist/spacewalk,shaochangbin/crosswalk,qjia7/crosswalk,jpike88/crosswalk,hgl888/crosswalk-efl,alex-zhang/crosswalk,ZhengXinCN/crosswalk,PeterWangIntel/crosswalk,qjia7/crosswalk,jondong/crosswalk,hgl888/crosswalk-efl,tomatell/crosswalk,marcuspridham/crosswalk,RafuCater/crosswalk,axinging/crosswalk,jpike88/crosswalk,pk-sam/crosswalk,tomatell/crosswalk,zliang7/crosswalk,PeterWangIntel/crosswalk,minggangw/crosswalk,jondong/crosswalk,DonnaWuDongxia/crosswalk,hgl888/crosswalk,crosswalk-project/crosswalk-efl,chuan9/crosswalk,rakuco/crosswalk,xzhan96/crosswalk,bestwpw/crosswalk,baleboy/crosswalk,tomatell/crosswalk,myroot/crosswalk,lincsoon/crosswalk,weiyirong/crosswalk-1,pk-sam/crosswalk,chuan9/crosswalk,lincsoon/crosswalk,jpike88/crosswalk,chuan9/crosswalk,huningxin/crosswalk,bestwpw/crosswalk,RafuCater/crosswalk,alex-zhang/crosswalk,crosswalk-project/crosswalk-efl,jondong/crosswalk,Pluto-tv/crosswalk,shaochangbin/crosswalk,heke123/crosswalk,fujunwei/crosswalk,leonhsl/crosswalk,ZhengXinCN/crosswalk,weiyirong/crosswalk-1,jpike88/crosswalk,axinging/crosswalk,jondong/crosswalk,heke123/crosswalk,jondwillis/crosswalk,leonhsl/crosswalk,axinging/crosswalk,zeropool/crosswalk,weiyirong/crosswalk-1,amaniak/crosswalk,minggangw/crosswalk,tedshroyer/crosswalk,crosswalk-project/crosswalk,XiaosongWei/crosswalk,DonnaWuDongxia/crosswalk,chuan9/crosswalk,chinakids/crosswalk,DonnaWuDongxia/crosswalk,jpike88/crosswalk,crosswalk-project/crosswalk-efl,crosswalk-project/crosswalk-efl,marcuspridham/crosswalk,crosswalk-project/crosswalk,stonegithubs/crosswalk,jondwillis/crosswalk,shaochangbin/crosswalk,RafuCater/crosswalk,mrunalk/crosswalk,chinakids/crosswalk,fujunwei/crosswalk,fujunwei/crosswalk,hgl888/crosswalk,jondong/crosswalk,shaochangbin/crosswalk,heke123/crosswalk,xzhan96/crosswalk,xzhan96/crosswalk,leonhsl/crosswalk,myroot/crosswalk,darktears/crosswalk,mrunalk/crosswalk,Bysmyyr/crosswalk,RafuCater/crosswalk,PeterWangIntel/crosswalk,zeropool/crosswalk,marcuspridham/crosswalk,rakuco/crosswalk,hgl888/crosswalk-efl,minggangw/crosswalk,bestwpw/crosswalk,Bysmyyr/crosswalk,myroot/crosswalk,heke123/crosswalk,tedshroyer/crosswalk,chinakids/crosswalk,alex-zhang/crosswalk,marcuspridham/crosswalk,leonhsl/crosswalk,TheDirtyCalvinist/spacewalk,dreamsxin/crosswalk,jondong/crosswalk,jondwillis/crosswalk,darktears/crosswalk,leonhsl/crosswalk,Bysmyyr/crosswalk,alex-zhang/crosswalk,heke123/crosswalk,xzhan96/crosswalk,shaochangbin/crosswalk,crosswalk-project/crosswalk,chinakids/crosswalk,mrunalk/crosswalk,XiaosongWei/crosswalk,bestwpw/crosswalk,siovene/crosswalk,huningxin/crosswalk,dreamsxin/crosswalk,TheDirtyCalvinist/spacewalk,ZhengXinCN/crosswalk,rakuco/crosswalk,xzhan96/crosswalk,Bysmyyr/crosswalk,DonnaWuDongxia/crosswalk,crosswalk-project/crosswalk-efl,lincsoon/crosswalk,Bysmyyr/crosswalk,siovene/crosswalk,tomatell/crosswalk,hgl888/crosswalk-efl,ZhengXinCN/crosswalk,jpike88/crosswalk,zeropool/crosswalk,darktears/crosswalk,tedshroyer/crosswalk,alex-zhang/crosswalk,tedshroyer/crosswalk,Bysmyyr/crosswalk,zeropool/crosswalk,ZhengXinCN/crosswalk,PeterWangIntel/crosswalk,pk-sam/crosswalk,PeterWangIntel/crosswalk,rakuco/crosswalk,amaniak/crosswalk,darktears/crosswalk,fujunwei/crosswalk,alex-zhang/crosswalk,weiyirong/crosswalk-1,dreamsxin/crosswalk,qjia7/crosswalk,bestwpw/crosswalk,axinging/crosswalk,jondong/crosswalk,darktears/crosswalk,darktears/crosswalk,xzhan96/crosswalk,baleboy/crosswalk,crosswalk-project/crosswalk,Pluto-tv/crosswalk,lincsoon/crosswalk,myroot/crosswalk,baleboy/crosswalk,pk-sam/crosswalk,amaniak/crosswalk,pk-sam/crosswalk,Pluto-tv/crosswalk,seanlong/crosswalk,tedshroyer/crosswalk,XiaosongWei/crosswalk,chuan9/crosswalk,bestwpw/crosswalk,crosswalk-project/crosswalk-efl,xzhan96/crosswalk,hgl888/crosswalk-efl,darktears/crosswalk,lincsoon/crosswalk,lincsoon/crosswalk,jpike88/crosswalk,axinging/crosswalk,stonegithubs/crosswalk,seanlong/crosswalk,RafuCater/crosswalk,amaniak/crosswalk,Bysmyyr/crosswalk,siovene/crosswalk,tomatell/crosswalk,minggangw/crosswalk,lincsoon/crosswalk