Update screenshots url in README.md
[sexy theme] remove extra reset which finds its way into stdout

Stray sgr0 was emitted to stdout, corrupting application output.
Merge pull request #272 from yachi/patch-1

Update screenshots url in README.md
Merge pull request #273 from betamatt/patch-1

[sexy theme] remove extra reset which finds its way into stdout
Merge pull request #275 from caguettaz/world

Improved prompt speed when hg is not installed.