gFetch Edition

Added:

• gF support: vim-fetch will now look for trailing jump specifications it understands when using Vim’s gF command, either in normal or visual mode
• API support for the above (fetch#cfile() and fetch#visual())
• support for jump specifications looking for method definitions or keywords
• support for pytest style method jump specifications based on the above – many thanks to @blueyed for submitting the original PR kicking this off (#3)
• vim-stay integration

Changed:

• buffer switching is now handled by fetch#buffer() and is current buffer only
• User autocommand events are now only fired if there is a defined matching autocommand – this removes the need to unsilent commands in those events
• documentation improvements

Fixed:

• replacing the spurious spec’ed buffer by the correct one would ignore the ++opt and +cmd options to edit commands
• documentation glitches

Removed:

• API function fetch#setpos() – this should have been private all along, really