Implementation of standard generator for docbook output

Till now docbook had its own output generator, but lot of possibilities were missing (see remark about updating below), with this patch the (more than) basic implementation has been made.

Added some docbook tests to the current tests and updated documentation where necessary

Tried updating current version but too many issues remained that were generically handled in the standard generator, code is in current version behind '#if 0' construct in doxygen.cpp and name with '_v1' and in docbookgen.cp'

1 files changed, 1 insertions, 1 deletions

diff --git a/src/outputgen.h b/src/outputgen.h
index 9935bd9..a99cff3 100644
--- a/src/outputgen.h
+++ b/src/outputgen.h
@@ -322,7 +322,7 @@ class BaseOutputDocInterface : public CodeOutputInterface
 class OutputGenerator : public BaseOutputDocInterface
 {
   public:
-    enum OutputType { Html, Latex, Man, RTF, XML, DEF, Perl };
+    enum OutputType { Html, Latex, Man, RTF, XML, DEF, Perl , Docbook};
 
     OutputGenerator();
     virtual ~OutputGenerator();