CurlURLInputStream constructor calls the readMore() method, which can
throw exceptions. In that situation, the destructor is not called, which
results in resource/memory leaks. To fix that, catch the exceptions,
manually do the cleanup and rethrow the exceptions.

Found by ossfuzz (locally)

Version 4.0.0

XERCESC-2209: Remove unused LSTRING feature test

XERCESC-2110: Remove XERCES_NO_MATCHING_DELETE_OPERATOR

XERCESC-2200: Appveyor bug fix

XERCESC-2201: Upgrade travis-ci

XERCESC-2141: Enable C++17, C++14 or C++11 when available

Use C++98 features and remove pre-Standard workarounds

XERCESC-2202: Update version to 3.3.0

cmake: Correct shared library name and symlink creation