mgmt: rename extractRequester() and support signed Interest v0.3

Change-Id: I6bb6635896fa1b9fa54beb70b902c5a35831dc9c
diff --git a/docs/INSTALL.rst b/docs/INSTALL.rst
index 468c346..ade7244 100644
--- a/docs/INSTALL.rst
+++ b/docs/INSTALL.rst
@@ -23,7 +23,7 @@
 - Fedora >= 29
 - Gentoo Linux
 - Raspberry Pi OS (formerly Raspbian) >= 2019-06-20
-- FreeBSD >= 12.0
+- FreeBSD >= 12.2
 
 .. _Install NFD on Ubuntu Linux using the NDN PPA repository: