minor changes

- all sequences now go through a wrapper.
- added PF_COLOR to enable/disable colors in output.
- etc, etc.

Closes #89

README.md

@@ -68,6 +68,11 @@ PF_SOURCE=""
 # Valid: string
 PF_SEP=":"
 
+# Enable/Disable colors in output:
+# Default: 1
+# Valid: 1 (enabled), 0 (disabled)
+PF_COLOR=1
+
 # Color of info names:
 # Default: unset (auto)
 # Valid: 0-9