Tried to get everything to an rc.0 of the very latest version,
which required some research in some cases about the published
versions. For example, some packages had version histories like:
```
...
1.0.3-winr.2 January 20th, 2015
1.0.3-winr.3 February 24th, 2015 installed
1.0.3 March 17th, 2015 installed
1.0.4-anubhav.0 August 6th, 2015
1.0.4-plugins.0 July 22nd, 2015
1.0.5-galaxy.0 July 17th, 2015
```
In this case, I would bump the version from `1.0.4-plugins.0`
to `1.0.5-rc.0`, skipping `1.0.4`.
This included removing some internal version constraints. It would be
nice if package A could say "use B@2.0.0" (when both have changed), but
when they're both in the release, we need to make a release that has a
B@2.0.0-rc in it, which doesn't match that constraint. Fortunately,
constraints aren't necessary within a release anyway.
Implements caching for single-file compilers (those that don't implement
'import' directives) as a superclass, CachingCompiler.
Used in coffeescript and templating.
Previously, registerCompiler was enabled by the *real* package
`compiler-plugin`, which arranged to only be available in versions of
the tool that support registerCompiler via... well, mostly via wishful
thinking.
Now this is implemented via a fake package called
isobuild:compiler-plugin. "isobuild" is a real Atmosphere organization
that will never publish any packages. The tool pretends that packages
isobuild:compiler-plugin@1.0.0, isobuild:linter-plugin@1.0.0, and
isobuild:minifier-plugin@1.0.0 exist, and carefully arranges for them to
be avoided in the actual process of building and app; they just are
referenced in Version Solver.
When we add future features like this, users of this version of Meteor
who try to depend on packages that need the feature will get a nice
error message pointing to
https://github.com/meteor/meteor/wiki/Isobuild-Feature-Packages
Users of current versions of Meteor who try to depend on packages that
require isobuild:compiler-plugin will get a slightly confusing message
about isobuild:compiler-plugin not existing. Users of current versions
of Meteor who try to depend on packages only some of whose versions
require isobuild:compiler-plugin will get a version that doesn't require
it.
