set dao beans to singleton scope
redevelop document orm API
Merge pull request #268 from Alex-Diez/ALFA_0_1

Different fixes
docmentation in sql-scripts
docmentation in dao-module
docmentation in business module
Merge pull request #269 from Alex-Diez/ALFA_0_1

Javadoc
docmentation in business module
Merge pull request #270 from Alex-Diez/ALFA_0_1

docmentation in business module
Merge pull request #271 from Black-Ink/ALFA_0_1

Merge to master