TODO.md in interval_notation-0.1.1 vs TODO.md in interval_notation-0.1.2

@@ -1,3 +1,7 @@
 * Write benchmarks
-* Optimize `#closure` and `#intersect?`
+* Optimize `#closure`, `#complement`
 * Visualization in console and in IRuby (how to scale into 80-symbol or 1200px screen); SVG; TeX formatters
+* Remove old git history related to mTOR project
+* What about working with simgle intervals (their, length, relations etc)?
+* (?) Make it possible to use intervals with non-numeric objects to be possible to use math expressions as interval boundaries
+* May be we should check that boundary is an actual number, not a NaN