Stable: 386.02_2-gnuton1

Changes from the latest stable gnuton build (386.02_1-gnuton1):

• kernel41: remove debugging output from blog_request() stats output (fixes #734)
• webui: validator.rangeFloat() should not reject values that are equal to the minimal allowed value
• rc: fix incorrect ICMPv6 rate control rule
• webui: fix client list search field showing wrong placeholder content
• rc: harmonize jitterentropy-rngd code with upstream; fix stop_jitterentropy()
• webui: various tweaks and fixes to the Firmware Upgrade page.
• rc: rework ICMPv6 firewall handling
• webui: don't remove QoS bandwidth settings from models without Cake support
• rc: only rate-limit ICMPv6 type 128 if DoS protection is enabled
• Updated documentation
• Updated documentation
• Merge tag '386.2_2' into dsl-master
• dsl: fix: Moved ewan nvram vars outside RTCONFIG_FRS_FEEDBACK.