boostorg
Improve doxygen files clean-up
Task to improve changes from PR #387
Below are suggestions from @awulkiew which I intend to work on:
Instead of clearing out the index dir in the index/make_qbk.py and doing the same in the make_qbk.py, index/make_qbk.py could be executed with --release-build option and cleanup related to the index could be done only there.
There are generated *.qbk files in directories doc/generated and doc/index/generated which are not needed. Also doc/html/geometry_HTML.manifest file. Ideally they probably should be removed as well, but this should be done after b2 is called. But since b2 can run make_qbk.py and the script is then executed before quickbook it is impossible to implement the cleanup of generated qbk files in this single script. Maybe it could be done in a separate cleanup script run by b2 after building docs from qbk files, but I don't know how exactly.
