Log Message:
Updated libxslt to 1.1.30.

.1.30: Sep 04 2017
• Documentation:
  Misc doc fixes (Nick Wellnhofer)
• Portability:
  Look for libxml2 via pkg-config first (Elliott
  Sales de Andrade),
  Change default SOPREFIX on Windows to "bin" (Nick
  Wellnhofer),
  Add WIN32_EXTRA_LDFLAGS to tests/plugins/
  Makefile.am (Michael Haubenwallner)
• Bug Fixes:
  Also fix memory hazards in exsltFuncResultElem
  (Nick Wellnhofer),
  Fix NULL deref in xsltDefaultSortFunction (Nick
  Wellnhofer),
  Fix memory hazards in exsltFuncFunctionFunction
  (Nick Wellnhofer),
  Fix memory leaks in EXSLT error paths (Nick
  Wellnhofer),
  Fix memory leak in str:concat with empty node-set
  (Nick Wellnhofer),
  Fix memory leaks in error paths (Nick
  Wellnhofer),
  Switch to xmlUTF8Strsize in numbers.c (Nick
  Wellnhofer),
  Fix NULL pointer deref in
  xsltFormatNumberFunction (Nick Wellnhofer),
  Fix UTF-8 check in str:padding (Nick Wellnhofer),
  Fix xmlStrPrintf argument (Nick Wellnhofer),
  Check for overflow in _exsltDateParseGYear (Nick
  Wellnhofer),
  Fix double to int conversion (Nick Wellnhofer),
  Check for overflow in exsltDateParseDuration
  (Nick Wellnhofer),
  Change version of xsltMaxVars back to 1.0.24
  (Nick Wellnhofer),
  Disable xsltCopyTextString optimization for
  extensions (Nick Wellnhofer),
  Create DOCTYPE for HTML version 5 (Nick
  Wellnhofer),
  Make xsl:decimal-format work with namespaces
  (Nick Wellnhofer),
  Remove norm:localTime extension function (Nick
  Wellnhofer),
  Check for integer overflow in xsltAddTextString
  (Nick Wellnhofer),
  Detect infinite recursion when evaluating
  function arguments (Nick Wellnhofer),
  Fix memory leak in xsltElementAvailableFunction
  (Nick Wellnhofer),
  Fix for pattern predicates calling functions
  (Nick Wellnhofer),
  Fix cmd.exe invocations in Makefile.mingw (Nick
  Wellnhofer),
  Don't try to install index.sgml (Nick
  Wellnhofer),
  Fix symbols.xml (Nick Wellnhofer),
  Fix heap overread in xsltFormatNumberConversion
  (Nick Wellnhofer),
  Fix <xsl:number level="any"/> for non-element
  nodes (Nick Wellnhofer),
  Fix unreachable code in xsltAddChild
  (mahendra.n),
  Change version number in xsl:version warning
  (Nick Wellnhofer),
  Avoid infinite recursion after failed param
  evaluation (Nick Wellnhofer),
  Stop if potential recursion is detected (Nick
  Wellnhofer),
  Consider built-in templates in apply-imports
  (Nick Wellnhofer),
  Fix precedence with multiple attribute sets (Nick
  Wellnhofer),
  Rework attribute set resolution (Nick Wellnhofer)
• Improvements:
  Add .travis.yml (Nick Wellnhofer),
  Silence tests a little (Nick Wellnhofer),
  Set LIBXML_SRC to absolute path (Nick
  Wellnhofer),
  Add missing #include (Nick Wellnhofer),
  Adjust expected error messages in tests (Nick
  Wellnhofer),
  Make xsltDebug more quiet (Nick Wellnhofer),
  New-line terminate error message that missed this
  convention (Jan Pokorný),
  Use xmlBuffers in EXSLT string functions (Nick
  Wellnhofer),
  Switch to xmlUTF8Strsize in EXSLT string
  functions (Nick Wellnhofer),
  Check for return value of xmlUTF8Strlen (Nick
  Wellnhofer),
  Avoid double/long round trip in FORMAT_ITEM (Nick
  Wellnhofer),
  Separate date and duration structs (Nick
  Wellnhofer),
  Check for overflow in _exsltDateDifference (Nick
  Wellnhofer),
  Clamp seconds field of durations (Nick
  Wellnhofer),
  Change _exsltDateAddDurCalc parameter types (Nick
  Wellnhofer),
  Fix date:difference with time zones (Nick
  Wellnhofer),
  Rework division/remainder arithmetic in date.c
  (Nick Wellnhofer),
  Remove exsltDateCastDateToNumber (Nick
  Wellnhofer),
  Change internal representation of years (Nick
  Wellnhofer),
  Optimize IS_LEAP (Nick Wellnhofer),
  Link libraries with libm (Jussi Kukkonen),
  Rename xsltCopyTreeInternal to xsltCopyTree (Nick
  Wellnhofer),
  Update linker version script (Nick Wellnhofer),
  Add local wildcard to version script (Nick
  Wellnhofer),
  Make some symbols static (Nick Wellnhofer),
  Remove redundant NULL check in xsltNumberComp
  (mahendra.n),
  Fix forwards compatibility for imported
  stylesheets (Nick Wellnhofer),
  Reduce warnings in forwards-compatible mode (Nick
  Wellnhofer),
  Precompute XSLT elements after preprocessing
  (Nick Wellnhofer),
  Fix whitespace in xsltParseStylesheetTop (Nick
  Wellnhofer),
  Consolidate recursion checks (Nick Wellnhofer),
  Treat XSLT_STATE_STOPPED same as errors (Nick
  Wellnhofer),
  Make sure that XSLT_STATE_STOPPED isn't
  overwritten (Nick Wellnhofer),
  Add comment regarding built-in templates and
  params (Nick Wellnhofer),
  Rewrite memory management of local RVTs (Nick
  Wellnhofer),
  Validate QNames of attribute sets (Nick
  Wellnhofer),
  Add xsl:attribute-set regression tests (Nick
  Wellnhofer),
  Ignore imported stylesheets in
  xsltApplyAttributeSet (Nick Wellnhofer)