Fix documentation errors (preservim#1269)

Ensure backward compatible testing of types (preservim#1266)

Replace trim() with a version-compatible alternative. (preservim#1265)

Change highlighting of bookmarks in the tree. (preservim#1261)

Answer the question about accessing files over scp or ftp. (preservim…

…#1259)

Trim filenames created via the fs_menu (preservim#1243)

Improve F.A.Q. Answers and Issue Templates (preservim#1249)

`go` on a bookmark directory will NERDTreeFind it. (preservim#1236)

Put Callback function variables in local scope. (preservim#1230)

Fix mouse-clicking a file to open it, which was broken in 6.10.5. (pr…

…eservim#1225)