Fix absolute path detection on Windows.

Closes GH-451.

doc-src/content/CHANGELOG.markdown

@@ -22,6 +22,7 @@ The Documentation for the [latest preview release](http://beta.compass-style.org
 * Vertical rhythm now has a minimum padding that defaults to 2px.
   This makes some edge cases look better.
 * New mixin `force-wrap` prevents URLs and long lines of text from breaking layouts.
+* Fix absolute path detection on windows.
 
 0.11.3 (06/11/2011)
 -------------------

lib/compass/commands/project_base.rb

@@ -84,8 +84,8 @@ module Compass
       end
 
       def absolute_path?(path)
-        # This is only going to work on unix, gonna need a better implementation.
-        path.index(File::SEPARATOR) == 0
+        # Pretty basic implementation
+        path.index(File::SEPARATOR) == 0 || path.index(':') == 1
       end
 
       def skip_extension_discovery?

lib/compass/configuration/adapters.rb

@@ -38,8 +38,8 @@ module Compass
       end
 
       def absolute_path?(path)
-        # This is only going to work on unix, gonna need a better implementation.
-        path.index(File::SEPARATOR) == 0
+        # Pretty basic implementation
+        path.index(File::SEPARATOR) == 0 || path.index(':') == 1
       end
 
       def to_sass_engine_options