Only allow alphanumeric characters & underscores for callback parameters.
This is only test code so we're not fixing any security issue but it happens
often enough that the whole jQuery repository directory structure is deployed
onto the server with PHP enabled that it makes is easy to introduce security
issues if this cleanup is not done.
This is a 1.x/2.x version of PR gh-4871.
The change doesn't require a release; it's meant at installations testing
the latest state of `1.12-stable` & `2.2-stable` branches.
This change also fixes testing on Travis & on Chrome/Firefox.
Closes gh-4875
Ref gh-4764
Ref gh-4871
(cherry picked from acb7c49c8d)
.travis.yml used single quotes which is inconsistent with what we use in most
other files. Also, the file was missing an empty line at the end.
(cherry-picked from 06320c88af)
Node.js & io.js have merged, there will be no more major io.js releases.
Also, as of today io.js is officially unsupported (even if it still gets some
updates) while Node.js 4.0.0 (just released!) will be supported until 2018.
(cherry-picked from 250a1990ba)
