[Kst] [Kst-plot/kst] 1768e7: drop empty value at row start

[Peter Kümmel]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 1768e7cae39f36480f167a1d799bd15653d2a42d
      https://github.com/Kst-plot/kst/commit/1768e7cae39f36480f167a1d799bd15653d2a42d
  Author: Peter Kümmel <syntheticpp at gmx.net>
  Date:   2013-11-01 (Fri, 01 Nov 2013)

  Changed paths:
    M src/datasources/ascii/asciidatareader.cpp

  Log Message:
  -----------
  drop empty value at row start

Column 1 of ",7,8,9" should be 7 not NAN.

Related to
https://bugs.kde.org/show_bug.cgi?id=301203
97e4ea9002300aa0661e6dfc6ab0b631d64fefe2