Moved API to JDK 8.
Adapted test to removed AmountFlavor.
Added TemporalAccessor to ConversionContext.
Updated spec document.
6: Adjust to API changes 

Task-Url: http://github.com/JavaMoney/jsr354-ri/issues/issue/6
6: Adjust to API changes 

Task-Url: http://github.com/JavaMoney/jsr354-ri/issues/issue/6
Merged local changes to branch.
Merged with repo version.
Added default methods for simplifying SPI implementation in most cases.
Updated specification.
Added additional extensions to the spec.
Added further singleton provider support.
Updated some API aspects slightly.
Updated spec.
Added PDF test (not active).