Update to 1.9.2

* buildlink to print/poppler-cpp

Changelog:
1.9.2

- Added missing step to the README.

1.9.1

- Save As now preserves the aspect ratio. Bug reported by Rainer
  Krachten.

1.9.0

- Added Czech translation provided by Pavel Fric.

- Will now use the default locale's language for standard dialogs (e.g.,
  for the file dialog).

- Dragging & dropping one or two files onto the filename line edits or
  onto the file viewer panels is now supported. Independently suggested
  by Liviu Andronic and Rory Gordon.

- Show Zones checkbox is always visible (it was only visible with
  --debug in earlier versions).

- DiffPDF now starts up with its initial comparison mode being whatever
  comparison mode was in force when it was shut down (or Words mode the
  first time it is run).

- Improved About box with more version info + contributors.

- Added --help command line option.

1.8.0

- Introduced zoning: this can be slow in Characters mode but can provide
  better accuracy in text modes.

1.7.1

- Improved Character mode to be as liberal about hyphens as Words mode.
- Minor doc changes that I forgot for 1.7.0.
- Minor GUI bug fixes and changes.
- Minor under the hood efficiency improvements.

1.7.0

- Renamed Text mode to Words mode. This mode is best for alphabetic text
  (e.g., English).
- Added Characters mode. This mode is best for logographic text (e.g.,
  Chinese and Japanese). This was suggested by Paul Howarth.

1.6.3

- Very minor cosmetic changes.

1.6.2

- Save button is now only enabled if there are changes.
- An improved help window with slightly more information.

1.6.1

- In rare cases the highlighting on the right hand page could be in the
  wrong (horizontal) position; this has now been fixed.

1.6.0

- In addition to Appearance comparisons using highlighting, some
  composition modes can now be used to help make subtle differences more
  visible. (This was inspired by feedback by Florian Heiderich.)
- Can now control the square size for appearance comparisons. Using very
  small squares can help reveal tiny Appearance differences.
- Can now control the fill opacity for highlighting.
- Extended zoom range from 20% to 800% (was 25% to 400%).

1.5.1

Quite a few false-positives have now been eliminated:
- All hyphens are treated the same now.
- Some weirdly-encoded open/close double-quotes are treated as normal
  Unicode open/close double-quotes.
- Improved whitespace ignoring.
Updated print/diffpdf to 1.9.2
Gitso is a frontend to reverse VNC connections. It is meant to be a simple
two-step process that connects one person to another's screen. First, the
support person offers to give support. Second, the person who needs help
connects and has their screen remotely visible. Because Gitso is cross-
platform and uses a reverse VNC connection, it greatly simplifies the
process of getting and providing support.
Added gitso 0.6.
Import dos2unix-5.3.3 as converters/dos2unix.

dos2unix includes utilities to convert text files with DOS or MAC
line endings to Unix line endings and vice versa. It is an update
of Benjamin Lin's implementations.
Add dos2unix
Added converters/dos2unix version 5.3.3
Conflict with dos2unix.
+ gitso (hi darcy!)