LaTeX problem with 2 consecutive single quotes

In LaTeX 2 consecutive single quotes are joined to 1 double quote. This leads in texts where 2 single quotes are intended to a strange view. An example is the initial value for variables. E.g. in Fortran: character(len=10) :: A = ''  (i.e an empty string which can either be defined as '' or as "") or in C: char *sq  = "''". In the source listings this is OK but in the description text it was not OK.
Bug ?? for page numbers in the latex indices

Due to the fact that the path was not stripped from the file name in case CREATE_SUBDIRS was set to YES there was a reference to a non existing page reference. In the corresponding hypertarget and label the path was already stripped.
Merge pull request #249 from albert-github/feature/bug_latex_single_quotes

LaTeX problem with 2 consecutive single quotes
Merge pull request #252 from albert-github/feature/bug_latex_index_komal

Bug ?? for page numbers in the latex indices