Use latest TTFunk to avoid loading unsupported cmap formats
move VERSION constant to lib/prawn/version.rb

Instead of encoding the version in a file text in the root of the gem,
encode the VERSION variable in a file under lib/prawn.

Having the files in lib/ depending on files in the root directory is not
practical for distributions wanting to package the library.
Use the latest ttfunk to avoid warnings
Don't prevent Grid classes from showing up in docs
Remove whitespace
Implement draw_text!() to remove dependency on Prawn from PDF::Core
Update to latest PDF::Core version
More template-related cleanup
Remove old website folder
fix rake stats
Merge pull request #768 from ruanwz/master

fix rake stats
Move even more low level code into PDF::COre

Squashed commit of the following:

commit 168c44f034fa38ed4845854e6aeae400b1b64dea
Author: Gregory Brown <gregory.t.brown@gmail.com>
Date:   Mon Sep 15 15:25:26 2014 -0400

    Continue to shrink renderer's API surface

commit 0c8befe470ed79bdebc4395fbdb083120474eabc
Author: Gregory Brown <gregory.t.brown@gmail.com>
Date:   Sat Sep 13 20:53:31 2014 -0400

    Make Prawn::Document::Internals mixin smaller

commit 0071a689c39741308db092a3ddd399856e56a4ff
Author: Gregory Brown <gregory.t.brown@gmail.com>
Date:   Sat Sep 13 20:33:18 2014 -0400

    Use explicit names for delegated methods

commit a77e9aa5b81b404bbd8d3be6d36316dd2e13c6f3
Author: Gregory Brown <gregory.t.brown@gmail.com>
Date:   Sat Sep 13 20:28:30 2014 -0400

    Remove some monkey patches and push more down to PDF::Core

commit a42d70d867f8efd5fd5407dac0c3745c64cf5a1b
Author: Gregory Brown <gregory.t.brown@gmail.com>
Date:   Sat Sep 13 19:03:00 2014 -0400

    Rough integration of PDF::Core::Renderer
Use latest PDF::Core version
Use latest TTFunk version
Process soft-hyphens in blocks which do not exclude trailing white space
Back to the future
Update how_to_read_this_manual.rb
Update how_to_read_this_manual.rb
Raise an error when unsupported PNG type is found
Fix typo in text box overflow section of the manual.