Testing!

This release has focused on making it much easier to integrate testing
into your workflow. Auto-testing, CLI testing for dev ops integration,
and headless testing support come together to make testing a major
feature in figwheel.main.

See the testing documentation here: https://figwheel.org/docs/testing.html
See the async main script docs here: https://figwheel.org/docs/main_script.html

• auto discovery and display of tests found in your source files with :auto-testing true
• added async support to the --main CLi arg that also supports non-zero exit status
• :launch-js option was created to support use of headless environments during testing Learn more
• fixed regresion where --compile --repl didn't start a repl

Extra Mains, Much better NPM and Global exports support, Smiley!

The new :extra-main-files option makes integrating things like tests
and devcards to your build super simple and CPU efficient
Learn more

There was a long standing bug with :global-exports support that I
was able to squash which in turn led to changes that make working with
npm modules much easier.

The new :npm option will help you make quick work of integrating
webpack bundled npm modules into your
build. Learn more

• added :pre-build-hooks and :post-build-hooks config options Learn more
• fixed the figwheel.main api in the CLJS repl so that it works
  properly under nREPL
• added the :build-inputs config option Learn More
• finally added the validation smiley \\(ツ)/, I pretty much had to after I saw this tweet

Fix for nREPL

Fixes a bug that was deleting the listeners that notified the client
to reload. Please use this release instead of 0.1.6

Scripting API

update: hot reloading does not work when figwheel.main is
started from nREPL

Added a Scripting API that allows one to start multiple builds and
then attach a REPL to any of the running builds. The API also allows
one to stop builds and obtain a repl-env from a build (this is
expecially helpful for VIM fireplace). See the figwheel.main.api
namespace and the docs at
https://figwheel.org/docs/scripting_api.html

• ignore preload link tags when reloading CSS

Windows Fix and merge multiple build-ids

• fixed a major problem on Windows that created a bad :asset-path which prevented the REPL from connecting
• merge build args which allows you to supply path separated build ids to --build
• allow connect-urls to not have a process-id and still connect
• change the default build name to "unknown" rather than common name "dev"
• allow the --serve flag after the --build-once flag, for testing advanced compiles and such
• throw an error when trying to start a REPL with a level other than :optimizations :none
• when the compile level is :whitespace, :simple or :advanced only pass :main ns to compiler
• made the default :asset-path a root path instead of relative
• add cljs.repl macros (doc, source, and friends) to the REPL
• now providing much more feedback when a :ring-handler doesn't load, prints out syntax errors etc.
• added support for the new nREPL https://github.com/nrepl/nREPL
• setting :reload-clj-files false should still reload cljc files on the CLJS side
• support code splitting