- Deleting controls with node/link deletion made conditional.
- New EN_addrule function added along with a test file.
- Rule structures re-named & rules.c heavily modified.
- Issue with exceeding limit on number of temporary file names fixed.
- VB declaration and DEF files updated.
Adds new options HEADERROR and FLOWCHANGE to provide more rigorous criteria for hydraulic convergence. Also breaks HYDRAUL.C into 3 separate files to improve code readability.