Merge branch 'release/0.4.1' into develop
Merge branch 'master' into develop
Merge branch 'master' into develop
document illegal character for name of key and splitter (fix #35)
commonize reference target with English version
add link to plugin usage
use same config example as in repos (fix #33)
Merge branch 'master' into develop
add description for except rule
clear method is now available in all services
Merge branch 'master' into develop
make options of fv_converter plugins more clear
add description for constructor (fix #38)
add description for get_client method
add FAQ regarding RPC errors; reorganized sections
fix typographic errors
add -E and -S options to keeper
translate FAQ to Japanese (fix #37)
fix wrong parameter name in FAQ
add value 0 meaning to -t option