More clean-ups

Better Cross-platform stuff

https://vimways.org/2018/from-vimrc-to-vim/

plugin/grep.vim

@@ -0,0 +1,21 @@
+ " Set up CtrlP with faster alternative, if possible
+if executable('ag')
+    " Use The Silver Searcher https://github.com/ggreer/the_silver_searcher
+    set grepprg=ag\ --nogroup\ --nocolor
+    " Use ag in CtrlP for listing files. Lightning fast, respects .gitignore
+    " and .agignore. Ignores hidden files by default.
+    let g:ctrlp_user_command = 'ag %s -l --nocolor -f -g ""'
+    let g:ctrlp_use_caching = 0
+    finish
+endif
+
+if executable('rg')
+    set grepprg=rg\ --color=never
+
+    let g:ctrlp_user_command = 'rg %s --files --color=never --glob ""'
+    let g:ctrlp_use_caching = 0
+    finish
+endif
+
+"ctrl+p ignore files in .gitignore
+let g:ctrlp_user_command = ['.git', 'cd %s && git ls-files . -co --exclude-standard', 'find %s -type f']