some initial work to using rocco for documentation

lib/time_ext.rb

@@ -1,7 +1,25 @@
-require 'rubygems'
+# encoding: utf-8
 
+require 'rubygems'
+require 'active_support'
+require 'time_ext/version'
+
+# [Calculation][ca] methods such as `#floor`, `#ceil`, `#round`,
+# `#prev_week` and many more, adding on top of the defaults present in
+# ActiveSupport.
+# [ca]: time_ext/calculations.html
 require 'time_ext/calculations'
+
+# [Iteration][it] methods allowing the use of `#each`, `#map_each` and more on
+# Time objects similar to how you loop over an Array of items.
+# [it]: time_ext/iterations.html
 require 'time_ext/iterations'
-require 'time_ext/support'
+
+# Core extention of [Time][ti] class to load in [Calculation][ca] and
+# [Iteration][it] modules.
+# [ti]: time_ext/core_ext/time.html
 require 'time_ext/core_ext/time'
+
+# Core extention of [Numeric][nu] class to set a couple of required aliases.
+# [nu]: time_ext/core_ext/numeric.html
 require 'time_ext/core_ext/numeric'