update Python and PHP version

Added PHP 5.5 and Python 3.3

I didn't add PHP 5.2. Maybe that was left off for a reason.

I changed the Python example from 3.2 to 3.3.
Many users might want to test the latest Python 2 and Python 3 only
and maybe Python 2.6 for the lowest version that makes it somewhat
easier to cater for Python 2 and 3.
don't mention patch version for PHP
new blog post about new travis gem features
Merge pull request #195 from travis-ci/rkh-new-cli-tricks

new blog post about new travis gem features
change title
time to blog about the awesomeness going on with the worker and new vm setup
some fixes from some feedback
some more feedback :)
there is no i in team
who would have thought English was my first language
Merge pull request #196 from travis-ci/jk_worker_revamp

Time to blog about the awesomeness going on with the worker and new vm setup
link to the lovely Sven
Merge branch 'jk_worker_revamp'
fix the title
remove the title
source_key should be quoted, on a single line.
Merge pull request #193 from JonnyJD/py_php

Update Python and PHP versions.
Update README.md
Merge pull request #197 from KamranMackey/patch-1

Fix typo in README
Grammar, typos and sentence flow touches

- Adding full stops to bullets using complete sentences
- While removing them from fractured
- Removed reading blocks of midsentence "e.g." use
- Capitalised some proper nouns
- Converted numbers to words under 10