Version 1.4.6

[TomSnijders]

Description

This is a version on the way to a new CRAN acceptance. The main changes have to do with the use of RInternals.h and the use of R_NO_REMAP, in accordance with "Writing R Extensions". Furthermore, due to memory leak errors, function sienaRI and the option prML=2 were disabled; this will be investigated further and, hopefully, these functionalities will return later.
Also, there is a new functionality using the keyword targets in siena07. Also, some minor bugs were corrected and some minor things cleaned up. All this is detailed in the NEWS.md file.

Checklist:

Checks

• The package builds on my OS without issues
• My changes generate no new warnings

Documentation

• I have commented my code inline, particularly in hard-to-understand areas
• If function added/modified, I have added/modified documentation (in .R file)
• I have added a description of all changes to this pull request above and to the NEWS.md file
• I have bumped the version in the DESCRIPTION and man/RSiena-package.md files by the appropriate increment:
  • 'major' (incompatible API changes)
  • 'minor' (add functionality in a backwards compatible manner)
  • 'patch' (backwards compatible bug fixes)

[TomSnijders]

Furthermore, changed varDyadCovar and coDyadCovar to resolve issue #88.
I still must update the manual.