Introduce RoundingMode object for specifying a rounding mode. Allow different rounding modes when converting currency
Merge branch 'pr/36' into nextrelease
updated changelog
Merge branch 'pr/31' into nextrelease

Conflicts:
	CHANGELOG.md
	lib/Money/CurrencyPair.php
removed composer.lock
copyrights
copyrights
removed unused VERSION file
cleanup
removed code coverage, not interested in that :)
using phpunit 4, more cleanup
removed unused build file
Removed \Money\InvalidArgumentException in favour of plain old InvalidArgumentException
prepare format tests
merge mathias new changes
Clear code
Reformating library