Fix typo in `meteor shell` output

Fixes #3326.
Fix `test-packages *` if some packages lack tests

Fixes #3334.

This was an intentional but poorly thought through change in
1.0.2 (1a9536baa).
docs: display release in mobile header
Don't crash on pathwatcher failures

Instead, increase polling interval for that file/dir to 500ms from 5s.

Fixes #3336.

The most common case where this was occuring is when you're on Linux and
your inotify max_user_watches is too low.  A wiki page will explain how
to increase this.  In debug mode, a message will tell you to go to the
wiki page if you hit the limit (we may later expose this message by
default, but it is part of the new user experience).

Conflicts:
	meteor
	tools/safe-pathwatcher.js
History.md update for 1.0.2.1
1.0.2.1-rc.1
Make wiki link visible, fix capitalization
1.0.2.1-rc.2
proposed banners for 1.0.2.1
1.0.2.1
fix banners.json
Whoops, forgot to make it a patch
Update docs to 1.0.2.1
Update examples to 1.0.2.1
Merge branch 'release-1.0.2.1'

Conflicts (because branched from release/METEOR@1.0.2, not the latest
commit on release-1.0.2):
	docs/.meteor/release
	docs/.meteor/versions
	docs/client/helpers.js
	examples/clock/.meteor/release
	examples/clock/.meteor/versions
	examples/leaderboard/.meteor/release
	examples/leaderboard/.meteor/versions
	examples/localmarket/.meteor/release
	examples/localmarket/.meteor/versions
	examples/todos/.meteor/release
	examples/todos/.meteor/versions