gparam: change value of G_PARAM_EXPLICIT_NOTIFY
gparam: change value of G_PARAM_EXPLICIT_NOTIFY

GParamSpec has a possibility of user-introduced flags, and we didn't
respect that with the addition of _EXPLICIT_NOTIFY.

Change the documentation for the maximum number of user flags to 10,
just to pick a somewhat random number.  The documentation here was never
correct anyway -- it previously claimed that as many as 38 flags were
possible.

Meanwhile, move G_PARAM_EXPLICIT_NOTIFY next to _DEPRECATED in order to
avoid conflicts with low-numbered user flags (which are in use by at
least evolution-data-server).

https://bugzilla.gnome.org/show_bug.cgi?id=731341

johne53/MB3Glib,tamaskenez/glib,MathieuDuponchelle/glib,cention-sany/glib,ieei/glib,lukasz-skalski/glib,tchakabam/glib,cention-sany/glib,krichter722/glib,MathieuDuponchelle/glib,endlessm/glib,MathieuDuponchelle/glib,mzabaluev/glib,tamaskenez/glib,endlessm/glib,Distrotech/glib,johne53/MB3Glib,tchakabam/glib,gale320/glib,johne53/MB3Glib,MathieuDuponchelle/glib,mzabaluev/glib,tamaskenez/glib,tamaskenez/glib,ieei/glib,tchakabam/glib,endlessm/glib,krichter722/glib,lukasz-skalski/glib,johne53/MB3Glib,cention-sany/glib,endlessm/glib,lukasz-skalski/glib,Distrotech/glib,Distrotech/glib,tchakabam/glib,tamaskenez/glib,lukasz-skalski/glib,mzabaluev/glib,gale320/glib,mzabaluev/glib,endlessm/glib,gale320/glib,krichter722/glib,johne53/MB3Glib,tchakabam/glib,ieei/glib,ieei/glib,Distrotech/glib,gale320/glib,krichter722/glib,ieei/glib,johne53/MB3Glib,gale320/glib,lukasz-skalski/glib,MathieuDuponchelle/glib,Distrotech/glib,cention-sany/glib,mzabaluev/glib,krichter722/glib,cention-sany/glib