shorten Config constant names
remove Config::HOME by constructing Config::GLOBAL_PATH using block
fix typo in config_spec
fix typo in config section of README
changeable config paths
convert config_paths to array
mention config_paths in readme
rename Config to IOConfig in config_spec as a fix for ruby 1.9.2
fix comment grammar
remove argument from verbose argument block, it can be only true
fix message for --help and --version arguments to include "and exit"
move checking presence of paths to optimize to image_optim bin
move args argument from initializer to run! in Runner
add --info argument to initialize ImageOptim showing verbose output and exit
remove Runner.run! as not used anymore
Merge branch 'config-paths'
Merge branch 'get-info'

Conflicts:
	CHANGELOG.markdown