Disable projectionist on vim enter, weird issue

Running shell commands via a call to system() within a user defined
function on vim startup causes weird text to be written to the screen,
on MacOS/bash/iTerm. See tpope/vim-rails#579

At some point I'll probably delve into this some more and try to find
the root cause, but for now just work around it by disabling running
both rails and projectionist VimEnter autocmds which trigger the issue.

vim/vimrc

@@ -143,8 +143,14 @@ let sessionman_save_on_exit=0
 let g:gist_show_privates = 1
 
 " disable rails plugin on vim enter, slow when used with vim-bundler
+" also results in some garbage written to screen, seems a vim issue
+" see https://github.com/tpope/vim-rails/issues/579 for some info
 let g:rails_vim_enter = 0
 
+" disable projectionist on vim enter, also causes garbage to be written
+" to screen, also see https://github.com/tpope/vim-rails/issues/579
+let g:projectionist_vim_enter = 0
+
 " Don't add the recent files menu from MRU plugin
 let MRU_Add_Menu = 0