Add man pages for credential helpers

Author: atpons

bundler/lib/bundler/man/bundle-config.1

@@ -113,6 +113,8 @@ The following is a list of all configuration keys and their purpose\. You can le
 .IP "\(bu" 4
 \fBconsole\fR (\fBBUNDLE_CONSOLE\fR): The console that \fBbundle console\fR starts\. Defaults to \fBirb\fR\.
 .IP "\(bu" 4
+\fBcredential\-helper\fR (\fBBUNDLE_CREDENTIAL_HELPER\fR): The path to a credential helper to use for fetching credentials from a remote gem server\.
+.IP "\(bu" 4
 \fBdefault_install_uses_path\fR (\fBBUNDLE_DEFAULT_INSTALL_USES_PATH\fR): Whether a \fBbundle install\fR without an explicit \fB\-\-path\fR argument defaults to installing gems in \fB\.bundle\fR\.
 .IP "\(bu" 4
 \fBdeployment\fR (\fBBUNDLE_DEPLOYMENT\fR): Disallow changes to the \fBGemfile\fR\. When the \fBGemfile\fR is changed and the lockfile has not been updated, running Bundler commands will be blocked\.

bundler/lib/bundler/man/bundle-config.1.ronn

@@ -161,6 +161,9 @@ learn more about their operation in [bundle install(1)](bundle-install.1.html).
    `bundle install`.
 * `console` (`BUNDLE_CONSOLE`):
    The console that `bundle console` starts. Defaults to `irb`.
+* `credential-helper` (`BUNDLE_CREDENTIAL_HELPER`):
+   The path to a credential helper to use for fetching credentials from a
+   remote gem server.
 * `default_install_uses_path` (`BUNDLE_DEFAULT_INSTALL_USES_PATH`):
    Whether a `bundle install` without an explicit `--path` argument defaults
    to installing gems in `.bundle`.