[HatoholReplyParser] Show error code name when it exists and error message doesn't exist
[HatoholMessageBox] Add line break
[HatoholError] Add a function to define an error
[HatoholError] Add functions to get error code names
[HatoholError] Make sure to call init() before using errorCodeNames
[hatohol-def-src-file-generator] Use HatoholError::getCodeNames() to get all errors
[hatohol-def-src-file-generator] Remove needless code
[hatohol-def-src-file-generator] Add error messages to hatohol_defs.js
[hatohol-def-src-file-generator] Escape single quote characters in error messages
[FaceRest] Use an error code name instead of an error message for syslog
[HatoholError] Fix inappropriate error codes & messages
[HatoholError] Use reference to return error code names
[server][test] Follow changes of error code names
[server] Initialize HatoholError at hatoholInit() to make sure it thread-safe
[HatoholError] Break a long line
[HatoholReplyParser] Ensure to build a more friendly error message
[HatoholReplyParser] Show optionMessage if it exists
[client][test] Fix a wrong regexp
Merge branch 'issue100'