* Modify scripts/gulpfiles/typings.js to write typings to BUILD_DIR.
* Modify tests/scripts/compile_typings.sh to check compilability of
resulting output from BUILD_DIR.
* Rename checkin script to checkin:built, add a checkin:typings script
to do the same for .d.ts files, and a new checkin script to do both.
* Have recompile run checkin:typings.
The documented release process is to do npm run recompile, merge the
resulting branch to develop, and then do npm run relase, which does
not do another build.
This process should probably be changed, but for the moment ensure
that npm run recompile (as well as npm run package:beta) runs
buildTasks.checkinBuilt after each .build to preserve the old procedure.
Make the destination directories for certain build/package/release
steps more easily (and centrally) configurable.
This only deals with building *_compressed* files;
blockly_uncompressed.js and the various msg/js/*.js files are not
affected by this commit.
