doc,build: update configure help messages

- The V8 inspector is no longer experimental.
- Note that building without SSL disables other features.

PR-URL: #12978
Refs: #12768 (comment)
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: gibfahn

configure

@@ -357,7 +357,7 @@ intl_optgroup.add_option('--without-intl',
     action='store_const',
     dest='with_intl',
     const='none',
-    help='Disable Intl, same as --with-intl=none')
+    help='Disable Intl, same as --with-intl=none (disables inspector)')
 
 intl_optgroup.add_option('--with-icu-path',
     action='store',
@@ -430,7 +430,7 @@ parser.add_option('--without-snapshot',
 parser.add_option('--without-ssl',
     action='store_true',
     dest='without_ssl',
-    help='build without SSL')
+    help='build without SSL (disables crypto, https, inspector, etc.)')
 
 parser.add_option('--xcode',
     action='store_true',
@@ -461,7 +461,7 @@ parser.add_option('--no-browser-globals',
 parser.add_option('--without-inspector',
     action='store_true',
     dest='without_inspector',
-    help='disable experimental V8 inspector support')
+    help='disable the V8 inspector protocol')
 
 parser.add_option('--shared',
     action='store_true',