🏡AHouse - A Realistic/Advanced Properties System

1. Fix bugs introduced by last update

1. Allow to remove the rent option on houses ( put the rent price as 0 )

1. Better code for peephole side detection
2. Rent button on panel

1. Add notification when buying an item, for the mailbox
2. Fix loading of house data on SQLite
3. Use CPPI on items from mailbox

1. Fix issues
2. Add settings

1. Fix issues concerning disconnecting players
2. Better NPC code

1. Fix issue from last release

1. Fix cleanup of signs + NPC.
2. Checks of mailbox items for servers with strange code.
3. Debug setting of mailbox spawning

1. Fix house refund

Affected file: ahouse/code/house_player/sv_dooraction.lua

1. Fix concerning a invalid player
2. Add print when cleaning entities
3. Fix some issues concerning renting

1. Fix issues related to blogs
2. Better handle of cleanups.

1. Fix owner issue