Allowed Robot fields with spaces in file path

Allowed Robot fields with spaces in file path/name to open properly
from 'Recent fields' menu.
Show one-time info message that semicolons are still not allowed in file paths
of Robot fields in 'Recent fields' menu.
8 jobs for master in 6 minutes and 13 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #10133
linux
build:linux

00:01:25

passed #10132
mac_old
build:mac

00:05:41

passed #10131
win32
build:win32

00:02:38

passed #10130
winxp
build:winxp

00:01:56

 
  Dist
passed #10137
linux
dist:linux

00:00:05

passed #10136
mac_old
dist:mac

00:00:27

passed #10135
win32
dist:win32

00:00:22

passed #10134
winxp
dist:winxp

00:00:17