Bug 893196 - Raise the Firefox minVersion to 21
Bug 768388: support hidden pref type
Merge pull request #1101 from erikvold/893196

Bug 893196 - Raise the Firefox minVersion to 21 r=@Mossop
Revert "Merge pull request #1117 from erikvold/893189v2"

This reverts commit 7e2beb888a06139a80d98bceda70edd3706635e0, reversing
changes made to 612c2a9ba7e8fde42885938abc7ad3baddfd93f1.
Merge pull request #1114 from erikvold/768388v2

Bug 768388: support hidden pref type r=@gozala
Implement node style net module.
Merge pull request #1118 from Gozala/hotfix/net-io

Bug 820953 - Implement node style net module. r=@Mossop