Merge pull request #67 from fulldecent/master

Support continuous integration testing using Travis CI

.travis.yml

+language: php
+php:
+  - 5.3.3
+  - 5.4
+  - 5.5
+
+before_script:
+  ## PHP_CodeSniffer
+  - pear install pear/PHP_CodeSniffer
+  - phpenv rehash
+  ## PHP Copy/Paste Detector
+  - curl -o phpcpd.phar https://phar.phpunit.de/phpcpd.phar
+  ## PHP Mess Detector
+  - pear config-set preferred_state beta
+  - printf "\n" | pecl install imagick
+  - pear channel-discover pear.phpmd.org
+  - pear channel-discover pear.pdepend.org
+  - pear install --alldeps phpmd/PHP_PMD
+  - phpenv rehash
+  ## PHPLOC
+  - curl -o phploc.phar https://phar.phpunit.de/phploc.phar
+
+script:
+  ## PHP_CodeSniffer
+  - phpcs --report=emacs --standard=PSR1 .
+  - phpcs --report=emacs --standard=PSR2 .
+  ## PHP Copy/Paste Detector
+  - php phpcpd.phar --verbose .
+  ## PHP Mess Detector
+  - phpmd . text cleancode
+  - phpmd . text codesize
+  - phpmd . text controversial
+  - phpmd . text design
+  - phpmd . text naming
+  - phpmd . text unusedcode
+  ## PHPLOC
+  - php phploc.phar .
+  ## PHPUNIT
+  - phpunit .

README.md

-Question2Answer on GitHub
+Question2Answer on GitHub [![Build Status](https://travis-ci.org/q2a/question2answer.png?branch=master)](https://travis-ci.org/q2a/question2answer) 
+
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 As of version 1.6.3, all development of [Question2Answer] will take place through GitHub.