luci-base: urlencode: encode all except unreserved characters.
luci-base: urlencode: encode all except unreserved characters.

As per http://tools.ietf.org/html/rfc3986#section-2.3

   Characters that are allowed in a URI but do not have a reserved
   purpose are called unreserved.  These include uppercase and lowercase
   letters, decimal digits, hyphen, period, underscore, and tilde.

      unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"

Signed-off-by: Yousong Zhou <1921aaedc62853b63cd90883c032392ad74750cc@gmail.com>

oneru/luci,teslamint/luci,kuoruan/lede-luci,wongsyrone/luci-1,oneru/luci,NeoRaider/luci,nmav/luci,urueedi/luci,rogerpueyo/luci,NeoRaider/luci,chris5560/openwrt-luci,cshore-firmware/openwrt-luci,ollie27/openwrt_luci,981213/luci-1,LuttyYang/luci,kuoruan/luci,jlopenwrtluci/luci,taiha/luci,jlopenwrtluci/luci,cshore/luci,LuttyYang/luci,Hostle/luci,taiha/luci,Wedmer/luci,cshore-firmware/openwrt-luci,rogerpueyo/luci,hnyman/luci,981213/luci-1,teslamint/luci,Hostle/luci,bright-things/ionic-luci,cappiewu/luci,kuoruan/lede-luci,mumuqz/luci,remakeelectric/luci,cshore/luci,cshore-firmware/openwrt-luci,ollie27/openwrt_luci,bittorf/luci,kuoruan/luci,kuoruan/luci,981213/luci-1,openwrt/luci,LuttyYang/luci,openwrt-es/openwrt-luci,cappiewu/luci,mumuqz/luci,tobiaswaldvogel/luci,chris5560/openwrt-luci,teslamint/luci,cshore/luci,oneru/luci,wongsyrone/luci-1,shangjiyu/luci-with-extra,daofeng2015/luci,ollie27/openwrt_luci,urueedi/luci,nmav/luci,hnyman/luci,Hostle/luci,aa65535/luci,LuttyYang/luci,daofeng2015/luci,NeoRaider/luci,NeoRaider/luci,artynet/luci,Noltari/luci,jlopenwrtluci/luci,Noltari/luci,daofeng2015/luci,Wedmer/luci,Hostle/luci,NeoRaider/luci,jlopenwrtluci/luci,NeoRaider/luci,bittorf/luci,rogerpueyo/luci,bright-things/ionic-luci,ollie27/openwrt_luci,artynet/luci,rogerpueyo/luci,openwrt-es/openwrt-luci,jlopenwrtluci/luci,artynet/luci,981213/luci-1,chris5560/openwrt-luci,remakeelectric/luci,openwrt/luci,taiha/luci,tobiaswaldvogel/luci,bittorf/luci,Noltari/luci,981213/luci-1,bright-things/ionic-luci,jlopenwrtluci/luci,shangjiyu/luci-with-extra,taiha/luci,Wedmer/luci,aa65535/luci,kuoruan/luci,cappiewu/luci,oneru/luci,aa65535/luci,rogerpueyo/luci,taiha/luci,Wedmer/luci,urueedi/luci,Wedmer/luci,hnyman/luci,rogerpueyo/luci,nmav/luci,hnyman/luci,remakeelectric/luci,wongsyrone/luci-1,mumuqz/luci,openwrt-es/openwrt-luci,oneru/luci,openwrt-es/openwrt-luci,Noltari/luci,LuttyYang/luci,nmav/luci,Wedmer/luci,lbthomsen/openwrt-luci,wongsyrone/luci-1,jlopenwrtluci/luci,ollie27/openwrt_luci,kuoruan/lede-luci,artynet/luci,teslamint/luci,Wedmer/luci,openwrt/luci,aa65535/luci,cshore-firmware/openwrt-luci,cshore/luci,Hostle/luci,remakeelectric/luci,mumuqz/luci,kuoruan/lede-luci,bittorf/luci,artynet/luci,lbthomsen/openwrt-luci,daofeng2015/luci,cappiewu/luci,hnyman/luci,cappiewu/luci,Hostle/luci,openwrt/luci,cshore-firmware/openwrt-luci,cappiewu/luci,ollie27/openwrt_luci,lbthomsen/openwrt-luci,chris5560/openwrt-luci,taiha/luci,shangjiyu/luci-with-extra,teslamint/luci,wongsyrone/luci-1,aa65535/luci,rogerpueyo/luci,bittorf/luci,urueedi/luci,cshore/luci,Wedmer/luci,NeoRaider/luci,cshore/luci,LuttyYang/luci,rogerpueyo/luci,Noltari/luci,tobiaswaldvogel/luci,oneru/luci,Hostle/luci,shangjiyu/luci-with-extra,aa65535/luci,bittorf/luci,chris5560/openwrt-luci,aa65535/luci,bright-things/ionic-luci,LuttyYang/luci,nmav/luci,bright-things/ionic-luci,openwrt/luci,bright-things/ionic-luci,mumuqz/luci,taiha/luci,oneru/luci,lbthomsen/openwrt-luci,teslamint/luci,teslamint/luci,taiha/luci,tobiaswaldvogel/luci,daofeng2015/luci,981213/luci-1,Noltari/luci,kuoruan/lede-luci,wongsyrone/luci-1,artynet/luci,kuoruan/lede-luci,urueedi/luci,cshore-firmware/openwrt-luci,daofeng2015/luci,oneru/luci,kuoruan/luci,bright-things/ionic-luci,jlopenwrtluci/luci,cappiewu/luci,openwrt-es/openwrt-luci,lbthomsen/openwrt-luci,openwrt-es/openwrt-luci,shangjiyu/luci-with-extra,shangjiyu/luci-with-extra,nmav/luci,openwrt/luci,bittorf/luci,openwrt-es/openwrt-luci,chris5560/openwrt-luci,Noltari/luci,wongsyrone/luci-1,kuoruan/lede-luci,mumuqz/luci,nmav/luci,teslamint/luci,cshore-firmware/openwrt-luci,lbthomsen/openwrt-luci,cshore-firmware/openwrt-luci,remakeelectric/luci,Hostle/luci,tobiaswaldvogel/luci,artynet/luci,tobiaswaldvogel/luci,cappiewu/luci,hnyman/luci,shangjiyu/luci-with-extra,daofeng2015/luci,shangjiyu/luci-with-extra,LuttyYang/luci,hnyman/luci,tobiaswaldvogel/luci,mumuqz/luci,bittorf/luci,kuoruan/luci,urueedi/luci,NeoRaider/luci,kuoruan/lede-luci,openwrt-es/openwrt-luci,ollie27/openwrt_luci,artynet/luci,urueedi/luci,hnyman/luci,artynet/luci,openwrt/luci,lbthomsen/openwrt-luci,981213/luci-1,nmav/luci,lbthomsen/openwrt-luci,cshore/luci,chris5560/openwrt-luci,ollie27/openwrt_luci,aa65535/luci,daofeng2015/luci,Noltari/luci,Noltari/luci,openwrt/luci,bright-things/ionic-luci,remakeelectric/luci,cshore/luci,urueedi/luci,kuoruan/luci,tobiaswaldvogel/luci,remakeelectric/luci,nmav/luci,kuoruan/luci,remakeelectric/luci,chris5560/openwrt-luci,wongsyrone/luci-1,mumuqz/luci