1.2.0

1. Removed travis.yml
2. Updated package description
3. Bumped package version to 1.2.0
4. Made some minor updates to the readme.md
5. Renamed some examples
6. Removed run_enc and run_enclose macros, which were replaced with the more straightforward () syntax at the end of enclose for concise tests
7. Documented several macros
8. Added support for trailing commas in macro arguments for enclose
9. Updated tests
10. Simplified the implementation of the enc, enclose and enclose_var macros