Setsuna questions

• Why is homebrew Hadoop 2.3 not working OSX Mavericks?
• Is elasticsearch non-deterministic?
• How to add a button in accordion header in bootstrap 3.0/bootstrap-ui?
• How to update opacity of WMS layer in leaflet?
• How to load textures from OBJ+MTL files in three.js?
• How to take a screenshot of desktop fast with Java in Windows (ffmpeg, etc.)?
• Remove keys from object not in a list in python? [duplicate]
• How to count lines in a file on hdfs command?
• How to uninstall pip on OSX?

Setsuna answers