v0.2.0

• Added: New exceptions:
  • ServerError
  • NoFileError
  • ValidationError
  • VersionMismatchError
  • ResourceNoFieldsProvidedError
  • ResourceNotFoundError
• Added: Create functionality for resources (see docs for details):
  • User
  • Group
  • IssueCategory
  • Version
  • TimeEntry
  • IssueRelation
  • ProjectMembership
  • WikiPage
  • Project
  • Issue
• Added: File upload support, see upload() method in Redmine class
• Added: Integer representation to all resources, i.e. int()
• Added: Informal string representation to all resources, i.e. str()
• Fixed: Conversion of issue priorities to enumeration resource object didn't work
• Changed: Renamed version attribute to redmine_version in all resources to avoid name intersections
• Changed: ResourceManager get() method now throws a ResourceNotFoundError exception if
  resource wasn't found instead of returning None in previous versions
• Changed: reimplemented fix for repr() from 0.1.1