Fix docker setup

[maixuanhan]

Hi,

I followed the instruction in the document but couldn't bring up the CAIRIS server. It took me some time to discover that the SW would not work with latest mysql docker image (with default configuration) and there are other issues. I make this change to make the SW runnable with recent docker version (25, 26). Below are the changes.

• Lock the bcrypt package version since newer version caused passlib warning.
• Lock mysql version (in compose file) to 5.7 (instead of "latest" which does not work).
• Add compose file with service health check to improve the startup process.
• Add script to build docker image from current repo instead of fetching from github. (UI is still being fetched from github).
• Grant executable permission to executable files.
• Add a simple instruction file.