Bugfix in smear.sh. Change in bashrc for PS1.

smear.sh was printing a empty line before the prompt (visible if
printing some visible character). Now it is not.
Add some color to prompt in PS1 in bashrc.
Little changes in fortune.conkyrc

Small changes in Fortune.conkyrc:
- Print only small fortunes because conky cut long texts.  Even with
  short fortunes that happens sometimes.
- Using smaller font.
- Change the gray color in the text to a lighter one.