add new branch main_portal

- portal without installation process
change calculation of execution time
add general caching
change init order for lang

- small dev mode fix
add check for db connection

- add cache for db connection
- remove cache info file..
update base template
add some statistics to main page
add player stats to main page
add some stats

- other changes...
add online players and blocks

- change main style
- add material class
add function for calculating timestamps
add total items
fix count of logins
refactor Material, TotalBlock, TotalItem
fix getMaterialImg
add material images for MC 1.5
add death stats
fix getMostOfType
add distance stats
add entities