Description of problem:
=======================
When user has a '.inputrc' in the user home directory with the following content:

{code}
# Control characters
"\C-?":   backward-delete-char
{code}

- The it fails with the the following Stack Trace:
{code}
$JBOSS_HOME/bin/jboss-cli.sh
java.lang.RuntimeException: ERROR parsing ? keys to aesh. Check your inputrc.
        at org.jboss.aesh.edit.mapper.KeyMapper.convertRandomControlKeys(KeyMapper.java:161)
        at org.jboss.aesh.edit.mapper.KeyMapper.mapRandomKeys(KeyMapper.java:138)
        at org.jboss.aesh.edit.mapper.KeyMapper.mapKeys(KeyMapper.java:108)
        at org.jboss.aesh.edit.mapper.KeyMapper.mapQuoteKeys(KeyMapper.java:49)
        at org.jboss.aesh.console.Config.parseInputrc(Config.java:127)
        at org.jboss.aesh.console.Console.reset(Console.java:150)
        at org.jboss.aesh.console.Console.<init>(Console.java:105)
        at org.jboss.aesh.console.Console.<init>(Console.java:101)
        at org.jboss.as.cli.impl.Console$Factory.getConsole(Console.java:85)
        at org.jboss.as.cli.impl.Console$Factory.getConsole(Console.java:78)
        at org.jboss.as.cli.impl.CommandContextImpl.initBasicConsole(CommandContextImpl.java:354)
        at org.jboss.as.cli.impl.CommandContextImpl.<init>(CommandContextImpl.java:294)
        at org.jboss.as.cli.impl.CommandContextFactoryImpl.newCommandContext(CommandContextFactoryImpl.java:76)
        at org.jboss.as.cli.impl.CliLauncher.initCommandContext(CliLauncher.java:279)
        at org.jboss.as.cli.impl.CliLauncher.main(CliLauncher.java:262)
        at org.jboss.as.cli.CommandLineMain.main(CommandLineMain.java:34)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.jboss.modules.Module.run(Module.java:312)
        at org.jboss.modules.Main.main(Main.java:460)
{code}



Version-Release number of selected component (if applicable):


How reproducible:
Steps to Reproduce:
1.  Create a file in user home directory with name ".inputrc"

2.  Add the following entry inside the file ".inputrc"
{code}
# Control characters
"\C-?":   backward-delete-char
{code}

3. Start jboss cli script.


Actual results:
================
- Mentioned stackTrace is shown


Expected results:
================
- CLI should not have terminated suddenly rather the exception should have been handled in a proper way.


Additional info: