Improvements to DropboxException. Split out the base exception class and added descendant DropboxRestException. Also update message returned by DropboxRestException to have more information as to what caused the exception. This will break on compile as DropboxException does not have StatusCode or Response properties.
IOS project
Fixed RestSharp
Merge branch 'staticcat/f-Improve-Dropbox-Exceptions'
Adjusted message generation to be more informative
Merge