0.13.0-rc7

Changes

c4fa4c2 Compile test cases to run tests without using Babel
5f61d80 Fix bugs in compiled library
dfee9bc Update legacy-support & JSDoc comments
fc0240c Deprecate positional request constructor API
5049822 remove redundant abs from MIN_IOU_VALUE
297fb24 fix test for amount min
2b600a1 more amount minimum abs test fixes
877c6bb amount min/max - more tests

Breaking changes (RippleAPI):

6831990 Use maxAmount in getPaths results so they can be passed to preparePayment
15c0e6d Remove computeLedgerHash and isValidAddress from API
b88e937 Return instructions in prepare responses