vle : fix compilation options handling

Fix error with unhandled compilation option combination (WITH_GTK=OFF &
WITH_GTKSOURCEVIEW=ON) (closes #124).
vle: update NEWS
vle-1.1.0-beta4
vle : update vle man page

remove depreciated options (-?, -i, -s, -j, -p)
all example use -P option

(closes #1)
Merge branch 'master' of https://github.com/eric-casellas/vle