added Handler
refactored db access
commit
refactored the dal, so now the logic is in the BL
add update assignment
fixed some bugs
added rollback to dal
added .gitignore
Revert 467c7aa..2ffc6db

This rolls back to commit 467c7aa39cdc3d6ddb5244a67ac3a989c17b93a4.
test
added .gitignore
Revert "added .gitignore"

This reverts commit 6532945c3f1dbb98cc856c09a9d88054f29463c6.
...
fixed git crash...
Merge branch 'master' into inserting-bl
commit for merge
added Junit jars
added test structures
added test classes
tried to fix problems with paths