clean_outlinks() now removes duplicate strings in outlinks
add remove duplicate outling strings feature to clean_outlinks()
enable (and edit) get_backlinks functionality
add tracing for google requests output in a .txt
caches now save as file_name_param=val_param=val_param_=val
and results save as the same with "results" appended
Merge branch 'backlinks_and_output_tweaking' into algorithm

Conflicts:
	crawler_control.c
add output of total links to print_url_table()