e-c-m 0.0.6 now required by the frameworks branch

[Alexander Neundorf]

Hi,

extra-cmake-modules 0.0.6 (just pushed) is now required by the current 
frameworks branch of kdelibs.
The frameworks karchive, itemmodels and threadweaver now use the new 
ecm_setup_version() macro as proposed here on the list.
All three now have their own separate Config.cmake.in file.
karchive even already fills in custom information, it sets
karchive_HAVE_BZIP2 and karchive_HAVE_LZMA, so users of the karchive library 
can simply check this using those cmake variables.

Alex