v2.4.0

• Several robustness improvements regarding unexpected telegram-cli behavior, especially when downloading media. See #73 for details. Contributed by @jmendeth, also thanks to @pdonadeo for the original PR.
• Make standard output unbuffered for better piping to other programs (contributed by @jmendeth)
• Default setting for maximum_dialogs is now much larger. If you were having issues with some dialogs not being found by the script, this might have been causing it. [#59]
• Forwarded messages are now shown as forwarded in HTML output [#60]
• Fixed crash caused by messages with an empty ID field [#72]
• Fixed crash caused by the HTML formatter attempting to linkify URIs in certain message texts [#75]
• Speed up dumping somewhat by subracting processing and media download time from sleep time