6: Adjust to API changes 

Task-Url: http://github.com/JavaMoney/jsr354-ri/issues/issue/6
Moved API/RI/TCK to JDK 8.
Merge remote-tracking branch 'origin/master' into master-jdk8

Conflicts:
	pom.xml
Fixed build.
Added exchange rate tests.
Added additional tests and fixes.
Added/fixed tests.