Merge pull request #697 from phil-davis/prepare-4.5.6

Prepare 4.5.6

Merge pull request #661 from phil-davis/prepare-4.5.5

prepare release 4.5.5

Merge pull request #631 from phil-davis/prepare-4.5.4

Prepare 4.5.4

Merge pull request #607 from phil-davis/support-sabre-xml-v4-4.5-series

Support sabre/xml v4

Merge pull request #606 from phil-davis/prepare-4.5.2

Prepare 4.5.2

Merge pull request #599 from phil-davis/remove-utf8_encode-for-4.5

Remove utf8_encode

Merge pull request #583 from phil-davis/prepare-4.5.0

Prepare 4.5.0

Merge pull request #578 from phil-davis/prepare-4.4.3

Prepare release 4.4.3

Merge pull request #576 from phil-davis/prepare-4.4.2

Release 4.4.2

Merge pull request #558 from phil-davis/prepare-4.4.1

Prepare release 4.4.1