Fully support neovim.
Switch the binary codes that identify actions.
Reduce the number of binary codes sent to vimcom.plus and
reorganize them.
Require vimcom.plus version _a1 (alpha 1).
To make it easier for people using the development version of
Vim-R-plugin to know when it's necessary to update vimcom.plus, I'm
appending an alpha number to vimcom.plus version, so, the plugin will
warn when there is a version mismatch.
Doc update: Neovim does not require --servername.
Different options in bash and Rprofile for Neovim.
Update vimcom version.
Use a time to check if vimcom.plus is loaded.
This new feature is available only for Neovim.
New option: vimrplugin_tmux_title.
URxvt support
Merge pull request #103 from khughitt/urxvt-support

URxvt support
Add tags to roxygen (thanks to berndbischl).
Add nvimcom.py and nvimserver.py to list of files.
Check if has "neovim" before DiscoverVimComPort.
Add nvimcom.py and nvimserver.py to Makefile.
Make smaller VIMINSTANCE and TmuxSession IDs.
Complete names of installed libraries.
If the function being completed is either require() or library(), and if
the argument being completed is the first one, return the names of
installed packages. (Based on code written by Michael Lerch).
Add timer.sh to list_for_vimball and Makefile.
Simplify timer.sh.
Add backslash to indicate string continuation.
Don't require that timer.sh be executable.