gnu: ledger: Fix test failures.

* gnu/packages/patches/ledger-revert-boost-python-fix.patch,
gnu/packages/patches/ledger-fix-uninitialized.patch: New patches.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/finance.scm (ledger)[source]: Use them.

gnu/packages/patches/ledger-revert-boost-python-fix.patch

@@ -0,0 +1,39 @@
+From 01220484f428a447e9b00e071a0d85185f30e1de Mon Sep 17 00:00:00 2001
+From: Alexis Hildebrandt <afh@surryhill.net>
+Date: Wed, 22 Jun 2016 15:43:37 +0200
+Subject: [PATCH] Revert "[python] Add fix for Boost.Python compile errors"
+
+This reverts commit 11590e134eafa768ccc4a171cc7fb216e906095f.
+---
+ src/py_commodity.cc | 3 ---
+ src/py_journal.cc   | 3 ---
+ 2 files changed, 6 deletions(-)
+
+diff --git a/src/py_commodity.cc b/src/py_commodity.cc
+index 5aafa6c..c457e64 100644
+--- a/src/py_commodity.cc
++++ b/src/py_commodity.cc
+@@ -243,9 +243,6 @@ namespace {
+ 
+ void export_commodity()
+ {
+-#if BOOST_VERSION >= 106000
+-  python::register_ptr_to_python< shared_ptr<commodity_pool_t> >();
+-#endif
+   class_< commodity_pool_t, shared_ptr<commodity_pool_t>,
+           boost::noncopyable > ("CommodityPool", no_init)
+     .add_property("null_commodity",
+diff --git a/src/py_journal.cc b/src/py_journal.cc
+index c1c38a9..879f954 100644
+--- a/src/py_journal.cc
++++ b/src/py_journal.cc
+@@ -232,9 +232,6 @@ void export_journal()
+           boost::noncopyable >("PostHandler")
+     ;
+ 
+-#if BOOST_VERSION >= 106000
+-  python::register_ptr_to_python< shared_ptr<collector_wrapper> >();
+-#endif
+   class_< collector_wrapper, shared_ptr<collector_wrapper>,
+           boost::noncopyable >("PostCollectorWrapper", no_init)
+     .def("__len__", &collector_wrapper::length)