Add hex and decimal output functions, WIP on % operator for
More work on string formatting.
Merge branch 'master' into format
Merge branch 'master' into format
Merge branch 'master' into format
Refactor to pull std library routines that were implemented in Jsonnet out of the c code into their
own files
Add basic string formatting, turn % operator into syntax sugar
% string formatting implemented for integer indexing
Merge branch 'master' into format

Conflicts:
	Makefile
Finish implementation of % operator, closes https://github.com/google/jsonnet/issues/4
Improve vim syntax highlighting file.
Add test for string format via object
Add copyright notices
Improve clean rule