0030. Starting reimplementation of sCalcActivity.
0031. Little cleanup. Adding space for changes.
0032. Trying to redesign app logic p.1
0033. Simplified process of launching app. Will revert it later.
0034. Some code cleanup. added Debug Logger version of activity.
0035. Simplified debug option implemented. Some minor cleanups performed.
0036. Working on evaluate() method.
0037. Working on evaluate() method. part 2.
0038. Working on evaluate() method. part 3.
0039. Working on evaluate() method. part 4.
0040. Working on evaluate() method. part 5. Fuck Yeah, it is complete.
0041. I am stacked again.