Merge pull request softlayer#855 from sergiocarlosmorales/master Version bump to v5.2.11

Merge pull request softlayer#849 from sergiocarlosmorales/fix-memory-… …hardware-list Avoid blindly passing memory result to formatter

bump to 5.2.9 

Update setup.py bumping to 5.2.8

version to v5.2.6 

Update CHANGELOG.md 

Update CHANGELOG.md 

Create setup.py bump to 5.2.3