modified the outline and chapters; the current design and its possible alternatives are compared at the end of chapter 3
+ Reference: The Transactional Concept by Jim Gray
fix: Year of publishing Jim Gray reference was missing
described transaction and ACID in the background section (to be continued)
added the interaction diagram from Alex' presentation
swapped chapters 3 (problem description) and 2 (background), new order: 1. intro 2. problem 3. background
modified the abstract slightly
wrote an introduction section
trashed the "Evaluation" chapter
moved '1.1 about this thesis' to the end of chapter 1
Merge branch 'daily'