Replace home directory before performing SaveAs

Fixes zyedidia#820

Fix moving to end of line on cursor down

Update readme

install the snap with make (zyedidia#747)

* install the snap with make

* set the source-type to git, remove get

* remove extra space

Re-add literate supportg

Add option to disable use of a the primary clipboard

Closes zyedidia#544

Fix string width for different sized tabs

Fixes zyedidia#475

Minor update

Merge

Update docs and readme