make `docopt` as function instead of macros

[signalpillar]

Fix issue when docstring passed as first argument explicitly - parse function fails on (string? doc) assert

It happens due to the fact that passed doc variable at compile time will point to symbol not an actual value. I have got rid of macros at all as it is recommended to use functions when it is possible

[mgrubb]

@postamar is this project still being maintained?

[benzap]

They need to add another clojure collaborator for this, I think the maintainer of this got busy.

[keleshev]

Anyone volunteers to be a new maintainer?

[keleshev]

@postamar please let us know if you are still interested in this project.

[postamar]

Sure! Sorry for not responding sooner. Please give me a few days to get up to date, I'll be more active henceforth, and if I can't, I'll let you know.

[carocad]

Hey @keleshev, @mgrubb, @signalpillar and @benzap I created a first alpha version of a complete rewrite of the docopt clojure implementation. If you could check it out and give some feedback and submit any pull-request I would greatly appreciate it :) IMO the new implementation is extremely easy to understand and is quite concise (<200 loc) so hacking it shouldnt be a problem.

Loooking forward to your feedback

[oemmerson]

@postamar Currently the example in the readme doesn’t work with the version on Clojars!

Please can you at least fix the issue with the -main docstring being parsed, bump the version number and upload to Clojars?

Perhaps you can also add @carocad as a maintainer since he has taken the time to do a simpler re-write that may be the future of the project.

Thanks