Port to R2HTML 2.3

We cannot access directly .HTML.file in the new (future) release.
Also add ... to setOutputFile() to avoid a warning due to Rcmdr
passing one argument to the menu callbacks.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@559 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix importing corpora with Rcmdr 2.1

New version no longer calls tkwait.window(), and this makes
checking result fail. There's probably a better solution,
but for now it's good enough.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@560 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Disable HTML report selection when no corpus is loaded

Else the function fails.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@561 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Move package methods to Depends

On Windows 7, using R 3.1.0, having it in Imports is not enough
when using the shortcut provided by the R.TeMiS installer.
Manual edition of stemming fails with a "could not find function
'loadMethod'" error. Calling library(methods) fixes it. This is
because the shortcut uses Rscript, which doesn't load methods
by default. The bug does not appear with the default R console,
which attaches methods by default.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@562 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Add force.wait=TRUE for Twitter import

See previous commit.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@563 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix missing html.on variable

Broken by recent commit.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@564 edb9625f-4e0d-4859-8d74-9fd3b1da38cb