Update README.md
Join on external field features add. Needed if two tables need to be joined, none of them beeing  the tabel of the active record.
Bugfix, error should not be thrown here. $end can be smaller than $start
Several changes in views of AR
Merge branch 'master' of https://github.com/Amstutz/ActiveRecord
View Improvements. Code Refactoring -> Factored out chunkds to field classes.
4.3 fix
ID bug fixed. Improved table properties handling.
Fixed missing dot
Simplification of loading File
Merge branch 'master' into develop