WorldSpot firmware trunk r39923

Beta release.
This firmware is compatible with recent hardware.
https redirection is enabled on routers with more than 40MB of ram.
It was tested on TP-LINK WR-1043ND V2.1, WR841N V8.4, WDR3500 V1.0, ACCTON MR3201A, x86 virtual machine
This firmware version uses more memory than previous versions. Routers with more than 32MB are recommended.