Avhtuple to android branch

I noticed my pull request was against the master instead of the android. 
Another try.

I created a branch of the android branch because that has pair support in it. I worked my way through the changes and copied the inserted lines for the pair support into the basics to support tuple! and save you the time of doing this.

Not tested, and there still is a lot left to do in tuple.reds and the logic in the lexer.r file. ( I did not figure out what the opt [ ] does)

Hope you will accept this start and I hope it did save you a little time.