Log Message:
waf: update to 2.0.2.

NEW IN WAF 2.0.2
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* Improve Intel Fortran compiler detection on Windows #2063
* Ensure that the task count starts at 1 in the build outputs
* Add a --pdb option to start pdb on unexpected exceptions #2052
* Fix conflicting qm/qrc re-used output files for multiple targets #2065
* Add java support in protobuf (extras) #2049
* Add a java test example (extras) #2062
* Enable symbol processing for empty targets (extras) #2053

NEW IN WAF 2.0.1
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* Improve the default preprocessor behaviour for gcc/msvc
* Accept task objects in Build.add_to_group for compatibility reasons
* Prevent xcode generator from overwriting existing features #2038
* Fix self.includes data scope #2035
* Fix Node.ant_glob case sensitivity regression #2034
* Fix Logs.verbose options regression #2033

NEW IN WAF 2.0.0
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* Provide a new priority system to improve scalability on complex builds
* Provide TaskGroup objects to improve scalability on complex builds
* Force new files into the build directory by default (use Node objects to bypass)
* Provide built-in support for building over UNC paths
* Simplify the Task class hierarchy; TaskBase is removed
* Display commands as string with "WAF_CMD_FORMAT=string waf build -v"
* Have ant_glob(..., generator=True) return a Python generator
* Accept nested lists and generators in bld(source=...)
* Sort TaskGen methods in alphabetical order by reversing TaskGen.prec order

* Remove 'ut_fun' from waf_unit_test.py
* Remove Node.sig and Node.cache_sig
* Remove the BuildContext.rule decorator
* Remove Task.update_outputs, Task.always_run
* Remove atleast-version, exact-version and max-version from conf.check_cfg
* Remove c_preproc.trimquotes
* Remove field_name, type_name, function_name from conf.check() tests
* Remove extras/mem_reducer.py as a better solution has been merged
* Remove Utils.ex_stack (use traceback.format_exc())