fix issue #3 of whitespace mishandling

whitespaces are now escaped with quotes
in the shell command that builds the PDF
Merge pull request #4 from pierre-haessig/whitespace-issue

fix issue #3 of whitespace mishandling
Merge branch 'master' of github.com:riccardomurri/euroscipy_proceedings into murri
Convert tables to 'grid tables'.
fix typos/bugs
Merge pull request #1 from euroscipy/murri

Fix typos in figures filenames and correct tables