Fix node-info to show right node version

Currently, node-info shows nothing if $version is different than 'none'.
[Fix #713] Set prompt theme off in unsupported terminal
Use short apothegms only in fortune
Add giddie theme
Update giddie theme

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Add skwp theme
Add kylewest theme
Add damoekri theme

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Escape '%' in path
Add smiley theme

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Add ruby-info to smiley theme
Add cloud theme

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Indicate SSH connections
Indicate inside Emacs
Update sorin theme screenshot
Add powerline theme
Add agnoster theme
Add pure theme
Fix theme function declaration style
Add paradox theme