More replacing of 'colors' with 'allow_ansi'

Author: kmvanbrunt

docs/settingchanges.rst

@@ -174,7 +174,7 @@ comments, is viewable from within a running application
 with::
 
     (Cmd) set --long
-    colors: Terminal               # Allow colorized output
+    allow_ansi: Terminal           # Allow ANSI escape sequences in output (valid values: Terminal, Always, Never)
     continuation_prompt: >         # On 2nd+ line of input
     debug: False                   # Show full error stack on error
     echo: False                    # Echo command issued into output
@@ -187,5 +187,5 @@ with::
 
 Any of these user-settable parameters can be set while running your app with the ``set`` command like so::
 
-    set colors Never
+    set allow_ansi Never
 

tests/scripts/postcmds.txt

@@ -1 +1 @@
-set colors Never
+set allow_ansi Never

tests/scripts/precmds.txt

@@ -1 +1 @@
-set colors Always
+set allow_ansi Always

tests/test_cmd2.py

@@ -354,11 +354,11 @@ def test_run_script_nested_run_scripts(base_app, request):
     expected = """
 %s
 _relative_run_script precmds.txt
-set colors Always
+set allow_ansi Always
 help
 shortcuts
 _relative_run_script postcmds.txt
-set colors Never""" % initial_run
+set allow_ansi Never""" % initial_run
     out, err = run_cmd(base_app, 'history -s')
     assert out == normalize(expected)
 
@@ -373,11 +373,11 @@ def test_runcmds_plus_hooks(base_app, request):
                                  'run_script ' + postfilepath])
     expected = """
 run_script %s
-set colors Always
+set allow_ansi Always
 help
 shortcuts
 run_script %s
-set colors Never""" % (prefilepath, postfilepath)
+set allow_ansi Never""" % (prefilepath, postfilepath)
 
     out, err = run_cmd(base_app, 'history -s')
     assert out == normalize(expected)