Merge pull request #7 from yuklia/master

ER-diagram
Add validator class
create config class
update config class
Added whitespaces
Add validator class
Added validator
Add default error msgs
Add default error msgs
update config Class for more than one ini file
update config class for work with more than one config file
update the config class for work with more than one ini file
fix conflict
delete second config file
Add missing files/PSR2
fix code by standard psr2
Merge pull request #9 from l2avenholm/master

Merged changes from all developers
added new files
Merge pull request #8 from JohnnySk/config

Config
merged with Baziak master