get rid of "before/after" and "cut" formulas, implement "replace" and "add" formulas
resolve conflicts
modif glyphs

+ add e
+ modif reverse curve function
+ minor changes
"replace" components should no be as capable as "cut" components
+ remove "before/after" and "cut" components
fix various bugs that were not properly tested
fix all glyphs so that they work with the new syntax
fix regression
new glyphs
resolve conflicts
resolve conflicts

about top-dot component
Only invert segments at rendering
Merge branch 'fix_#38' of github.com:byte-foundry/prototypo into fix_#38