Import the Ahem font from http://www.w3.org/Style/CSS/Test/Fonts/Ahem/

resources/ahem/COPIED-FROM

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+The files in this directory are copied from http://www.w3.org/Style/CSS/Test/Fonts/Ahem/

resources/ahem/COPYING

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+The Ahem font in this directory belongs to the public domain. In
+jurisdictions that do not recognize public domain ownership of these
+files, the following Creative Commons Zero declaration applies:
+
+<http://labs.creativecommons.org/licenses/zero-waive/1.0/us/legalcode>
+
+which is quoted below:
+
+  The person who has associated a work with this document (the "Work")
+  affirms that he or she (the "Affirmer") is the/an author or owner of
+  the Work. The Work may be any work of authorship, including a
+  database.
+
+  The Affirmer hereby fully, permanently and irrevocably waives and
+  relinquishes all of her or his copyright and related or neighboring
+  legal rights in the Work available under any federal or state law,
+  treaty or contract, including but not limited to moral rights,
+  publicity and privacy rights, rights protecting against unfair
+  competition and any rights protecting the extraction, dissemination
+  and reuse of data, whether such rights are present or future, vested
+  or contingent (the "Waiver"). The Affirmer makes the Waiver for the
+  benefit of the public at large and to the detriment of the Affirmer's
+  heirs or successors.
+
+  The Affirmer understands and intends that the Waiver has the effect
+  of eliminating and entirely removing from the Affirmer's control all
+  the copyright and related or neighboring legal rights previously held
+  by the Affirmer in the Work, to that extent making the Work freely
+  available to the public for any and all uses and purposes without
+  restriction of any kind, including commercial use and uses in media
+  and formats or by methods that have not yet been invented or
+  conceived. Should the Waiver for any reason be judged legally
+  ineffective in any jurisdiction, the Affirmer hereby grants a free,
+  full, permanent, irrevocable, nonexclusive and worldwide license for
+  all her or his copyright and related or neighboring legal rights in
+  the Work.

resources/ahem/README

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+The Ahem font was developed by Todd Fahrner to help test writers
+develop predictable tests. The font's em square is exactly square.
+Its ascent and descent is exactly the size of the em square. This
+means that the font's extent is exactly the same as its line-height,
+meaning that it can be exactly aligned with padding, borders, margins,
+and so forth.
+
+The font's alphabetic baseline is 0.2em above its bottom, and 0.8em
+below its top. The font has an x-height of 0.8em.
+
+The font has four glyphs:
+
+  'X' U+0058 A square exactly 1em in height and width.
+
+  'p' U+0070 A rectangle exactly 0.2em high, 1em wide, and aligned so
+             that its top is flush with the baseline.
+
+  'É' U+00C9 A rectangle exactly 0.8em high, 1em wide, and aligned so
+             that its bottom is flush with the baseline.
+
+  ' ' U+0020 A transparent space exactly 1em high and wide.
+
+Most other US-ASCII characters in the font have the same glyph as X.
+
+The Ahem font belongs to the public domain as described in COPYING.
+
+Acknowledgements: The font was originally created by Todd Fahrner in
+the late 90s, and was updated by Paul Nelson in the mid 2000s. The
+changes were the introduction of x-height information to the OS/2
+table and the addition of the space and non-breaking space glyphs.