JAlgoArena 2.0

v2.0.0

- fix travis config

v1.0.36

- problems difficulty calibration

v1.0.35: - new problem

- Dichroic Towers of Hanoi

v1.0.33: - new problem

- Restaurants
- update time limit to 5 seconds for 3 hardest problems

v1.0.32: - new feature

- change the way of how memory limits are proceed. It's now constant for all (security, not part of competition) that limit it to 32 MB
- above means there is no need to keep any memory limit related info in Problems Service anymore

v1.0.31: - add new problem

- binary weighing scale

v1.0.30: - fix for problem

- happy numbers problem description fix

v1.0.29: - add new problem

- power

v1.0.28: - fixing problems

- fix description for chocolate bars

v1.0.27: - fixing problems

- add missing notes about what is forbidden (using java framework in some cases, like Arrays.sort)