Description of problem:
**Issue:**

anaconda fails when connected to a Wi-Fi network with a '#' in the SSID

**To Reproduce:**

1. Connect to a network with a '#' in the SSID.
2. Launch anaconda.

**Expected Behavior:**

anaconda starts up normally.

**Observed Behavior:**

anaconda crashes on an unhandled ValueError.

**Analysis:**

On startup, anaconda calls SimpleConfigFile.read() on every ifcfg file in /etc/sysconfig/network-scripts. For each line of the ifcfg file, SimpleConfigFile.read strips out comments, which it defines as anything following a '#' character on a line, then unquotes the string:

        s = line.strip()
        if '#' in s:
            s = s[:s.find('#')] # remove from comment to EOL
            s = s.strip()       # and any unnecessary whitespace
        key, eq, val = s.partition('=')
        if self.read_unquote:
            val = unquote(val)

unquote() passes the value to shlex.split:

        def unquote(s):
            return ' '.join(shlex.split(s))

If Wi-Fi network with a '#' in the name has an ifcfg file, it will contain lines like this:

        ESSID="Example Network #1"

After comments are stripped, this line becomes:

        ESSID="Example Network 

val then becomes:

        "Example Network

shlex.split() then throws a ValueError during the unquote() call, due to the lack of a closing quotation mark. This ValueError goes unhandled, causing anaconda to crash.

**Workaround:**

Delete the offending ifcfg file before launching anaconda.

Version-Release number of selected component:
anaconda-20.25.15-1.fc20.x86_64

The following was filed automatically by anaconda:
anaconda 20.25.15-1 exception report
Traceback (most recent call first):
  File "/usr/lib64/python2.7/shlex.py", line 172, in read_token
    raise ValueError, "No closing quotation"
  File "/usr/lib64/python2.7/shlex.py", line 96, in get_token
    raw = self.read_token()
  File "/usr/lib64/python2.7/shlex.py", line 269, in next
    token = self.get_token()
  File "/usr/lib64/python2.7/shlex.py", line 279, in split
    return list(lex)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/simpleconfig.py", line 26, in unquote
    return ' '.join(shlex.split(s))
  File "/usr/lib64/python2.7/site-packages/pyanaconda/simpleconfig.py", line 123, in _parseline
    val = unquote(val)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/simpleconfig.py", line 69, in read
    key, value = self._parseline(line)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/network.py", line 236, in read
    SimpleConfigFile.read(self)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/network.py", line 767, in find_ifcfg_file
    ifcfg.read()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/network.py", line 752, in find_ifcfg_file_of_device
    root_path)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/network.py", line 291, in dumpMissingDefaultIfcfgs
    if find_ifcfg_file_of_device(devname):
  File "/usr/lib64/python2.7/site-packages/pyanaconda/network.py", line 1189, in networkInitialize
    devnames = dumpMissingDefaultIfcfgs()
  File "/sbin/anaconda", line 1068, in <module>
    networkInitialize(ksdata)
ValueError: No closing quotation

Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-base
cmdline_file:   initrd=initrd0.img root=live:UUID=967B-5310 rootfstype=vfat rw rd.live.image overlay=UUID=967B-5310 quiet  rhgb rd.luks=0 rd.md=0 rd.dm=0  BOOT_IMAGE=vmlinuz0 
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.11.10-301.fc20.x86_64
other involved packages: python-libs-2.7.5-9.fc20.x86_64
product:        Fedora
release:        Fedora release 20 (Heisenbug)
type:           anaconda
version:        20