Add missing network libs on SunOS
editors/lyx: update to 2.0.7 and add missing boost dep

Changes from upstream (snipped, full changelog at http://www.lyx.org/announce/2_0_7.txt):
** Bug fixes:
*************
* DOCUMENT INPUT/OUTPUT
- Fix garbage in document export (and maybe other places) by making encoding
  conversions thread-safe (bug 8854).
- Fix output of ulem commands (underline etc.) which was broken as of
  LyX 2.0.6 (bug 8733).
- Fix problem with unbalanced braces in XeTeX output (bug 8765).
- Fix problems with unbalanced braces with a secondary CJK language
  (bug 8215).
- Fix state of certain language packages (polyglossia, japanese) in
  child documents (bug 8770).
- Fix compilation of documents containing chemical equations and math
  integrals (bug 8731).
- Fix compilation with nested ("sub") custom floats.
- Fix import of CSV-files.

* LYXHTML
- Fix random character inserted as year modifier in author-year citations.

* BUILD/INSTALLATION
- Add support for automake 1.13.
- Fix compilation with clang LLVM compiler.
- Fix Qt tools search when a Qt directory has been specified.
Updated editors/lyx to 2.0.7