adding resource decorator support

• new options for resource decorator

Mapped delete errors to errorMap

• Delete errors are wrapped as errorMap{} so that they may be retried
• Reverted #15, as it's no longer needed

Added yaml tags

v0.5.4.1

updated test

Alpha Release

• Added Waiter
• Removed ValidationError

Alpha Release

• added yaml override example
• added check for struct fields

Alpha Release

• changed api
• properties are read from servers

Alpha Release

• changed Sync() to return produced properties from various Resource's

Alpha Release

• checked for nil builder creation

Alpha Release

• Added an example to documentation
• Removed Bag from Resource struct

Alpha Release

• refined error handling: multiple errors can now be sent to developers at once