v0.18.7 Tantalum 2017-12-18

• Better error reporting when binary expressions cannot be transpiled. (#468) - @Konstantin8105
• Add Inherited in NonNullAttr. (#477, #478) - @Konstantin8105
• Fix panic in some situations using for. (#473, #479) - @Konstantin8105
• Add SentinelAttr to AST. (#371, #480) - @Konstantin8105
• Add lvalue in MemberExpr. (#378, #481) - @Konstantin8105