Log Message:
Update rabiit to 2.2.0.

2.2.0: 2017-01-22

Markdown support improvement release.

Improvements

All

* Dropped Ruby 2.0 support.
* Dropped gdk_pixbuf2 gem 3.0.8 or earlier support.

rabbit

* PDF: Supported PDF file that has "%" in its name.
* Dropped Migemo support.
* Markdown: Supported tag.

  Example (Inline):

	Normal {::tag name="center"}Centered{:/tag} Normal

  Example (Paragraph):

	Normal

	{:.center}
	Centered

	Normal

* Markdown: Supported wait in nested list item.
* Improved performance on deciding font size dynamically.
* Changed to use RubyGems user in config.yaml on pushing slide/theme gems.
* PDF: Supported link. But there are the following limitations:

  - cairo 1.15.4 is required. (If you use Rabbit with cairo 1.15.2 or
    earlier, you just can't use this feature.)
  - Link target is paragraph not link text.

Theme

* slide-logo: Supported logo per side by specifying image file name to
  logo-image slide property.
* title-on-image-toolkit: Improved readability by rendering character border.
* syntax-highlighting: Changed color for path of #include in C. Now,
  it uses the same color as normal string.

rabbit-slide

* Markdown: Fixed a bug that required newlines are missing. [GitHub#95][Patch
  by znz]

Document

* Improve English in FAQ. [GitHub#100][Patch by Todd Trimble]

Fixes

rabbit

* Fixed a bug that error isn't reported when multibyte image file name is
  specified and it doesn't exist. [GitHub#91][Reported by takiy33]
* Windows: Fixed encoding error on image file detection. [GitHub#93][Reported
  by dogatana]
* Fixed a bug that an error is occurred when you cancel in slide select
  dialog.
* Fixed typos. [GitHub#97][Patch by znz]
* Fixed a bug that spotlight and magnifier uses wrong position when slide
  aspect ratio and window aspect ratio are difference. [GitHub#99][Patch by
  OBATA Akio]
* Windows: Fixed a bug that unfullscreen doesn't restore window
  size. [GitHub#98][Reported by TADA, Tadashi]

Document

* Fix typos. [GitHub#101][Patch by znz]

Thanks

* takiy33
* dogatana
* znz
* Todd Trimble
* OBATA Akio
* TADA, Tadashi