v0.12.1

General improvements

• some joker.string functions now accept char arguments in addition to strings. Thanks @mrichards42! #184
• added joker.string/triml and joker.string/trimr. Thanks @mrichards42! #185
• Joker now exits with code 1 on eval errors. Thanks @mrichards42! #187
• added joker.tools.cli namespace (port of clojure.tools.cli). Thanks @mrichards42! #186

Linter improvements

• BigInteger, Thread$State and Thread$UncaughtExceptionHandler are now recognized by linter. Thanks @conormcd! #180
• added unsupported read arities to linter. #182
• relaxed timeout argument type to Number in deref. #188

Fixes

• re-seq and re-find now return nil when appropriate. Thanks @mrichards42! #183