Also remove all mentions of setupegg.py from the documentation.

matches windows compiler behavior

Cython generated C code contains the number '-2147483648L', which
leads to a warning on 32 bit platforms:

"Warning: this decimal constant is unsigned only in ISO C90"

See the discussion at http://stackoverflow.com/questions/9941261/

The compiled code seems to run correctly despite the warning and
if there are problems, they should turn up in the nose testing.

Closes gh-6863.

* shell script style fixes inspired by google shell style guide
  https://google.github.io/styleguide/shell.xml
* .travis.yml longline breaking tested with
  http://yaml-online-parser.appspot.com/

Travis ci is migrating to GCI and the 32 bit tests broke in the process.
This cleans up the tools/travis-test script, fixes it for current
travis, and changes the 32 bit test to use python 2.7 in order to turn
up errors involving python long integers.

In preparation for dropping Python 3.2 and 3.3, the USE_DEBUG test is
run in the travis ci trusty beta so that python3 defaults to 3.4.

This should ensure the suite stays in working condition, not to produce
reliable timing information.