Update zenroom2.vim

VIM - Vi IMproved 7.4 under cygwin generates the following errors

>Se ha detectado un error al procesar /home/alberto.paz/.vim_runtime/sources_non_forked/vim-zenroom2/plugin/zenroom2.vim:
>línea   65
>E128: Function name must start with a capital or "s:": g:zenroom_goyo_before()
>línea   67
>E133: ":return" no está dentro de una función
>línea   74
>E193: ¡":endfunction" no está dentro de una función!
>línea   76
>E128: Function name must start with a capital or "s:": g:zenroom_goyo_after()
>línea   78
>E133: ":return" no está dentro de una función
>línea   88
>E193: ¡":endfunction" no está dentro de una función!
>línea   90
>E700: Función desconocida: g:zenroom_goyo_before
>E700: Función desconocida: g:zenroom_goyo_after
avoid the garbled characters in Chinese language windows OS
Added 'tablast' to toggle between tabs using <leader>tl.
prevent auto restore last edit position for git commit msg.
Updated plugins
fix zenroom2.vim | bug fix
add indent file | markdownとcoffeeのタブを2に設定
fix vimrc/basic.vim | デフォルトのタブを4に設定
Merge pull request #89 from sota1235/master

fix zenroom2.vim | bug fix
Merge pull request #87 from iceliushuai/master

prevent auto restore last edit position for git commit msg.
Merge pull request #82 from lyager/tablast

Added 'tablast' to toggle between tabs using <leader>tl.
Merge pull request #60 from japaz/master

Update zenroom2.vim
Merge pull request #66 from shenchsh/master

avoid the garbled characters in Chinese language windows OS
Add support for mouse if it is available
Updated plugins. Removed the tabstop merge that 010c2940ce8847ec8a14b0755574cba64f26ae7f introduced
Merge pull request #91 from thehodapp/master

Add support for mouse if it is available
Updated plugins
Merge branch 'master' of https://github.com/amix/vimrc
Merge branch 'master' of https://github.com/amix/vimrc