improved installation procedure and new productivity functions
New in this release:
- minor clean up of the API doc
- now copying default repo to $HOME/.ck/{version} to be able to always find it
- added possibility to split dirs for the whole repo
(to be able to exchange repos with split directories) - added commands "private", "recache", "split_all_dirs" to ck add/update repo
- added try/catch around encode/decode routines to better support non-UTF locale
- can use wildcards when searching for UIDs
- added repo_module_uoa to be able to execute module from a specific repository