glib-2.0: Add FileStream.read_line method
glib-2.0: Add FileStream.read_line method

Based on patch by Frederik and Nicolas Joseph, fixes bug 582178.

playya/vala,lovebug356/vala,GNOME/vala,jessevdk/vala,lovebug356/vala,severinh/vala,Jc2k/vala,spidermonkdust/vala,jessevdk/vala,flobrosch/vala-fixes,themiwi/vala,severinh/vala,flobrosch/vala-fixes,rvu95/vala,Distrotech/vala,kamanashisroy/aroop,frida/vala,Distrotech/vala,kamanashisroy/aroop,spidermonkdust/vala,kamanashisroy/aroop,playya/vala,themiwi/vala,frida/vala,GNOME/vala,phako/vala,frida/vala,xdave/pvala,rvu95/vala,tjol/vala-tjol,rvu95/vala,jessevdk/vala,spidermonkdust/vala,severinh/vala,GNOME/vala,tjol/vala-tjol,phako/vala,GNOME/vala,themiwi/vala,frida/vala,flobrosch/vala-fixes,Jc2k/vala,playya/vala,Distrotech/vala,tjol/vala-tjol,frida/vala