Changed meta description generator to not print if empty
Merge pull request #2 from dmyers/meta-desc

Changed meta description generator to not print if empty
Add phpstorm .idea to git ignore
Move max description length to class property
Improve setting of keywords and update tests
Change incorrect Content-Type header from text/xml to application/xml
Fix meta generator test for php 5.3
Only loc is optional, see #3 and http://www.sitemaps.org/protocol.html
Fix the test for required sitemap properties
Generating of default routes should be optional
Package should use full namespace
Clean up some code
Merge pull request #5 from Calotype/feature-generating-routes-should-be-optional

Feature generating routes should be optional, fix #4
Test against php 5.6 and hhvm, but allow failures for them for now
Fix error if location is not directly provided (loc is provided instead)
Add test to make sure sitemap generator stripts trailing slashes in locations
Implement setting a canonical url
Merge branch 'release/0.0.5'

* release/0.0.5:
  Implement setting a canonical url