add target entry for patch function
add hotspot product entry
first compilable version for DraginoV2
modify the copyright and license information for target makefile
add kernel image into tested
disable carrierwrt watchdog and use busybox watchdog
The first workable version for E3276 modem, features as follow:

1. Connect internet automatically
2. 802.11n 40Mhz wireless signal channel
3. NCM driver support for E3276 3G/4G modem
Add the ncm status in the luci UI.

1. Refer to issue #4 (https://github.com/thecarevoice/portal/issues/4)
Add a get started doc for product hotspot including build and modify
Close thecarevoice/portal#7: Add the package mwan3 and mwan3-luci to manange the multiwan interface
Close thecarevoice/portal#16: Make led flash when wifi is active
Close thecarevoice/portal#18: Modify the default SSID name to KangYu �
Close thecarevoice/portal#19: Fix the reset gpio pin bug and make restore factory enable
Close thecarevoice/portal#15: Make 3G modem auto-connect to internet when unplug and re-plug
Fix a bug of clean build image, lack of build feed package
Improve  thecarevoice/portal#13: Replace ssh access to routers with public keys