simple forwardable notation, that describes function method shared between class and instance.
server configuration class. relative path utility function.
server configuration class. changed base_dir location on loading config.yml.
(1) default base_dir is a parent directory of config.yml file.
(2) base_dir is a relative path -> relative location from a parent directory of config.yml file.
(3) base_dir is an absolute path -> absolute location from a root direcory.
server configuration class. refactored logging params. renamed local variable name.
server configuration class. changed location of log file path.
relative log file path -> relative location from base_dir.
absolute log file path -> absolute location from root directory.
changelog: * lib/rims/server.rb: path location described at config.yml is changed. on loading config.yml, base_dir is a relative path from a parent directory of config.yml file. log file path is a relative path from a base_dir.
Merge branch 'config'