Installer should check system prerequisites and warn user if they are not fullfilled

To prevent insufficient machine parameters or setting installer should do basic check for some parameters like:

• memory amount
• maximum open file limit
• maximum thread count limit
• internet connection
• others reasonable criteria should be added here

If these criteria aren't met, installer should display add warning page before further installation saying that requirements aren't satisfied and tools may not work properly. Reason for this is that sometimes JBDS is used in very strict environment (typically training rooms, universities, etc where many system resources are limited or blocked) but user isn't warned and after install user can see after that lots of runtime errors and got bad feeling about the tool. This should be avoided and user should be at least warn that he is running JBDS in inappropriate environment.