Twitterscraper

Fixed
- Errors occuring during the serialization of a non-html response (everything after 1st request),
No longer crashes the program but is catched with a try / except.
- Fixes https://github.com/taspinar/twitterscraper/issues/93

- The '' character in an username is now removed by the ".strip('\')" method instead of "[1:]".
- This fixes issue https://github.com/taspinar/twitterscraper/issues/105

Improved
- The way the number of days are divided over the number of parallel processes is improved.
- The maximum number of parallel processes is limited to the max no of days.
- Fixes https://github.com/taspinar/twitterscraper/issues/101

Fixed
- PR 89: closed pools to prevent zombie processes.

Fixed
- Fixed MaxRecursionError crashes which was introduced with version 0.5.0

Added
- Added the html code of a tweet message to the Tweet class as one of its attributes

Fixed
- Fixed backward compatability of the new --lang parameter by placing it at the end of all arguments.