add opcode "mul-int/2addr", "sub-long", "add-int/2addr", "mul-int/lit16", "rem-int/lit8", "add-long/2addr", "add-int/lit16", "div-int/lit8"
Merge branch 'master' of https://github.com/dm4/contentprovider-androguard
Merge pull request #21 from atdog/master

handle more calculate opcode(mul, add, div, rem, sub ...)