Validate custom field regexp (#8865).
Removed calls to deprecated Object#type.
Removed a few assertions.
REST API for reading attachments (#7671).
Merged r6282 from trunk.
scm: bazaar: use "shell_quote_command" method at adapter for JRuby + Windows command name.
Merged r6281 from trunk.
scm: git: use self.class.sq_bin for command name at adpter scm_cmd().
Merged r6280 from trunk.
scm: git: use "shell_quote_command" method at adapter for JRuby + Windows command name.
Merged r6279 from trunk.
scm: mercurial: use self.class.sq_bin for command name at adpter scm_cmd().
Merged r6278 from trunk.
scm: mercurial: use "shell_quote_command" method at adapter for JRuby + Windows command name.
Merged r6277 from trunk.
scm: cvs: use self.class.sq_bin for command name at adpter scm_cmd().
