rflexscan 0.3.0

• Updated help for rflexscan method.

rflexscan 0.2.0

• Added a NEWS.md file to track changes to the package.
• Renamed flexscan method to rflexscan to be consistent with the class name.
• Avoided writing/reading temporary files in rflexscan method for speed-up.
• Implemented print.rflexscan method.
• Implemented print.rflexscanCluster method.