experience how to compile the phpdoc help using phing

Ticket: 299

tools/build/build.xml-readme.txt

+Note for compiling the phpdocumentor help using the (current) revision 810 of
+build.xml:
+
+Use phing 2.2.0 tu build it. Version phing 2.3.0beta1 will not work.
+
+If you used pear to install phing, then make sure, that the pear subfolder
+pear/data is also in your php include_path. Otherwise you will get an error
+'BUILD FAILED Can't load default task list'.
+
+Note that there is a bug in phing 2.2.0 under windows. To fix it replace
+in bin\phing.bat the line
+set PHP_CLASSPATH="%PHING_HOME%\classes"
+by
+set PHP_CLASSPATH=%PHING_HOME%\classes
+
+If you use phing 2.2.0 and fixed the bug calling tools\build>phing generate-docs
+should compile the the help to build/tobuild/docs/API/phpdoc/html
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