Handling previous and new data, general improvements

git-svn-id: https://serce.ics.p.lodz.pl/svn/labs/iad/bs_sb_11_00/PKAL/trunk@118 394eada3-bb13-4990-b77a-b92b0afa1d70
[Task 1] Fix - "rysowanie histogramow nie zawsze mamy dobre wyniki".

git-svn-id: https://serce.ics.p.lodz.pl/svn/labs/iad/bs_sb_11_00/PKAL/trunk@119 394eada3-bb13-4990-b77a-b92b0afa1d70
[Task 1] Fix - "rysowanie histogramow (granica górna Y, nakladanie sie(???) histogramow podczas np. c.dat)"


git-svn-id: https://serce.ics.p.lodz.pl/svn/labs/iad/bs_sb_11_00/PKAL/trunk@120 394eada3-bb13-4990-b77a-b92b0afa1d70
Conflict fix

git-svn-id: https://serce.ics.p.lodz.pl/svn/labs/iad/bs_sb_11_00/PKAL/trunk@124 394eada3-bb13-4990-b77a-b92b0afa1d70
Fixed conflicts