Enable installing kpilot docs. Move macro_optional_add_subdirectory(docs) to the end as it needs to be included after all the *_SUPPORTED definitions and also there is no need to call it conditionally in both branches of "if (ONLY_KLEO)". Previously kpilot was affected, as docs/CMakeLists.txt needed KPILOT_SUPPORTED to be set to true before including this file in order to install kpilot's documentation.
Enable installing kpilot docs.
Move macro_optional_add_subdirectory(docs) to the end as it needs to be included after
all the *_SUPPORTED definitions and also there is no need to call it conditionally
in both branches of "if (ONLY_KLEO)". Previously kpilot was affected, as docs/CMakeLists.txt
needed KPILOT_SUPPORTED to be set to true before including this file in order to install
kpilot's documentation.

svn path=/trunk/KDE/kdepim/; revision=899135

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi