Log Message:
Update to 1.3.4

Upstream changes:
2014-10-16, version 1.3.4
=========================

Implementation changes
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* Fix input of huge floats.

Other changes
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* Support the AArch64 and the Mips64 ABIs.

2013-07-21, version 1.3.3
=========================

Implementation changes
----------------------

* Fix integer input of leading zeros in power-of-two base.

* Fix several floating-poing conversion bugs involving huge numbers.

* Fix bug that would set input stream fail state when reading a number at EOF.

Other changes
-------------

* Support the x32 ABI.