v4.1.0

• Converting a record into a Pandas DataFrame (#380)
• Locating signals in a multi-segment record (#403)
• Writing custom annotation symbols (#404)
• Performance improvements when writing annotations (#406)
• Correct rounding when converting floating-point signal data (#419)
• Writing signals in compressed format (#420)
• Decoding non-ASCII text in EDF files (#429)
• Bug fixes when writing signal metadata (#424)
• Documentation updates (#401, #407, #433, #437)
• Internal refactoring (#396, #400)
• Test suite improvements (#416, #422)