Support custom PDF viewer

[GoogleCodeExporter]

What steps will reproduce the problem?
1. run any tex file
2.
3.

What is the expected output? What do you see instead?
Custom PDF viewer. Poppler viewer. Let me be clear, I would like 
to see a PDF viewer of my choice (nothing personal Poppler).  

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by marcoh...@gmail.com on 16 Sep 2009 at 2:24

[GoogleCodeExporter]

NB: This will in all probability break the SyncTeX feature.

Original comment by st.loeffler on 16 Sep 2009 at 4:51

• Changed title: Support custom PDF viewer
• Added labels: Type-Enhancement
• Removed labels: Type-Defect