Fix pdfkit table to properly print deposit slip

https://trexglobal.bugz.cvsdude.com/bugz/show_bug.cgi?id=13982

Pdfkit wasn't resetting @_newLineY after moving to new page, which result with one row per page after first page

* Reset @_newLineY to 0 on page break

! affected table in pdf printing so only deposit slip is affected and should be properly tested
Merge pull request #4 from elmariofredo/master

Fixing @_newLineY table issue