v0.3.3

Bugfixes:
- don't crash if source is empty
  commit c62d8c38f36f4feac7385feb30f60c88b624f3c1
- parse \n as newline when loading ColorStr
  commit 0d63d170ee1d7b339d2133ed827bc651c0131957
- the root device is not always /dev/sda
  commit 95b6daba2af78a8438f53c47d1b4d86b23c19a07