Rewrite, cleanup and bugfixes

* More events added, constants cleaned up
* Events now handled using noccylabs/tinyevent
* Fixed magenta/cyan mixup in style
* Fixed LineRead not resetting history pointer on command

lib/LineRead.php

@@ -2,6 +2,10 @@
 
 namespace NoccyLabs\Shell;
 
+/**
+ * This is a readline-like implementation in pure PHP.
+ *
+ */
 class LineRead
 {
 
@@ -127,6 +131,7 @@ class LineRead
                     array_unshift($this->history, $this->buffer);
                     $this->buffer = null;
                     $this->posCursor = 0;
+                    $this->posHistory = 0;
                     printf("\n\r");
                     $this->state = self::STATE_IDLE;
                 }