Fixed the changes log for #669
Added the new commands is_file and is_dir to the changes log. Related to #669.
fixed an issue where a dot in a directory name would be misinterpreted as a file extension. Relates to ticket #669.
fixed the open issues with the is_dir and is_file functions for the ticket #669.
Implemented ticket #701 "Let taylor return coefficients"
Improved implementation of ticket #706 Multiple succeeding history header lines are now also removed
Implemented ticket #700 "Search result visibility"
Improved implementation of ticket #692 - White space closes now the autocompletion list - Resolved an oversight in the table metadata - Resolved an intrinsic transposition in fft2d
Implemented ticket #704 "Misleading typisation warning"
Fixed issue #707 "Possible data race crash"