Merge pull request #1 from dnnsoftware/development

Fix bug DNN-4057: copy the RegisterClientReference method from WebUtilit...
DNN-4755, Allow for more tokens in CoreMessaging E-Mails

As described in the ticket; this will allow for more tokens and therefor
greater flexibility in the core messagin template. It's just adding a
few more tokens with no impact on anything else.
Improved Tokenreplce
DNN-5601 Allow specifying null type to GetValue and GetValueOrDefault
Build localization into list entries so they can be localized by dropping a resource file into the App_GlobalResources folder. This would take care of DNN-5568.
Fix DNN-5629: RoleController.DeleteRole() now removes UserInfo objects from data cache as they have been modified
DNN-5361 Config manager upload button always active
DNN-5396 IE11: Can not move pages in Page Management
Add code documentation in AJAX.cs
dnn-5633 change default biography field to be a multi-line text box
CONTENT-2698 - Set DotNetNuke.Library AssemblyInfo status in ReleaseMode.Stable
CONTENT-2699 - Updated version to 7.3.3
DNN-5648 / SOCIAL-3344 Upgrade fails
DNN-5649 improve captcha logic
DNN-5649 improve captcha logic
DNN-5649 improve captcha logic
DNN-5649 improve captcha logic
Content-2671: exclude modules in admin category.
DNN-5687 User account settings are not applied at host user accounts
DNN-5671 Message on Languages module reads "DotNetNuke"