HoMM3 HD - Releases and updates.

HoMM3 HD 4.100 RC4

4.100 RC2 -> 4.100 RC4 (12/24/2015)

[-] Fixed bugs in the scenario manager folders.
[+] Improved update system.

+ Now, after installing the full version (4.100 RC4 and higher) on top of the old one, it is possible to revert.