Adds composer.json

Signed-off-by: Paul de Wouters <paul@hmn.md>
Test against latest version of WordPress and PHP

Signed-off-by: Paul de Wouters <paul@hmn.md>
Change copyright year

Signed-off-by: Paul de Wouters <paul@hmn.md>
Fix typo

Signed-off-by: Paul de Wouters <paul@hmn.md>
Fix typos

Signed-off-by: Paul de Wouters <paul@hmn.md>
Merge pull request #107 from humanmade/update-travis

Test against latest version of WordPress and PHP
Merge pull request #112 from humanmade/fix-typos

Fix typos
Merge pull request #109 from humanmade/fix-docblock-typo

Fix typo
Merge pull request #106 from humanmade/adds-composer-support-105

Adds composer.json
Merge pull request #108 from humanmade/update-copyright

Change copyright year
Merge branch 'master' into fix-docblocks
More doc block changes

Signed-off-by: Paul de Wouters <paul@hmn.md>