Log Message:
Update to 0.9.19:

2010-02-15 Rasqal Version 0.9.19 Released

   The only change to this release is to fix the pkg-config rasqal.pc file
   to to restore the dependency on raptor which was accidently deleted.
   Lesson learnt: do not commit code after midnight local time.

2010-02-14 Rasqal Version 0.9.18 Released

   Add initial draft parsing and API (NOT execution) support for SPARQL
   1.1 Update W3C Working Draft of 2010-01-26.
   Add public APIs (row, results, result formatter, variables table) so
   that query results can be built, read and written without a query.
   Add API resilience checks for invalid NULL pointer arguments.
   Many other bug fixes and improvements were made.
   Fixed Issues: #0000320, #0000323 #0000343, #0000345 and #0000347