fix(lib): add missing 'use strict' statement

Author: michael-ciniawsky

lib/escape.js

@@ -1,3 +1,5 @@
+'use strict'
+
 /**
  * @description Replace String based on RegExp
  *

lib/loops.js

@@ -1,3 +1,5 @@
+'use strict'
+
 /**
  * @description Given a "loop" parameter from an "each" tag, parses out the param names and expression to be looped.
  *

lib/tags.js

@@ -1,12 +1,14 @@
+'use strict'
+
 /**
- * @description Get the nect tag from a node list
+ * @description Get the next tag from a node list
  *
  * @method getNextTag
  *
  * @param  {Array}   nodes Nodes
  * @param  {Number}  i     Accumulator
  *
- * @return {Array}   []    Array containing the next tag in nodes
+ * @return {Array}   []    Array containing the next tag
  */
 function getNextTag (nodes, i) {
   // loop until we get the next tag (bypassing newlines etc)