Get all publications from author (via recursive call of get_publications -> added new parameter)
Publication info includes Google Scholar code (for further use).
Changed string format to UTF-8 to capture accents in names.
Citation count defaults to 0 when none.
Merge branch 'master' of https://github.com/jaumebonet/scholar into get-all-publications

Conflicts:
	R/publications.r
Related updated to NEWS and project files
Merge branch 'get-all-publications' into develop