Update README.md

Added some additional notes regarding Ubuntu 12.04
Update README.md

Ubuntu 12.04 and Debian users might have issues with the SSL cert
Update README.md
Version 0.0.39
Tries logging to ~/.slap/slap.log instead of ./slap.log
Minor tweaks
Link to keybindings in readme file should go to line 43
Merge pull request #93 from jelmerdemaat/master

Link to keybindings in readme file should go to line 43
Removes pane logic from Slap.js
Version 0.0.40
Merge pull request #81 from xenuser/patch-1

Update README.md
Minor bugfixes
Added file encoding support with options and autodetection
Minor changes to katywings' encoding PR

Closes #95
Version 0.0.41
Updates package.json description
Updates README.md
Updates CLI usage string and README.md to support opening multiple files and dirs
Version 0.0.42
Adds warning message if xclip is not installed