Update change log
Merge pull request #1024 from AlexandreToyer/master

Documentation: add page for StopWords and URL Filter
Merge pull request #1025 from AlexandreToyer/master

Documentation: fix typo
Merge pull request #1026 from AlexandreToyer/master

Documentation: add page for synonyms
Merge pull request #1027 from emmanuel-keller/master

Update change log
Update how_to_extract_specific_information_from_web_pages.md

Language/clarity improvements
Update how_to_use_URL_filter_feature.md

Structure/clarity/language improvements
Update how_to_set_up_stop_words.md

Language/clarity improvements. Two brownie points for the Gad Elmaleh reference.
Fixes #1030
Fixes #1031
Merge pull request #1034 from emmanuel-keller/master

Bug fixes
Implements #1035
Merge pull request #1038 from emmanuel-keller/master

Implements #1035
Merge pull request #1040 from AlexandreToyer/master

Documentation: add page for analyzers
Merge pull request #1041 from AlexandreToyer/master

Documentation: analyzers
Merge pull request #1042 from AlexandreToyer/master

Documentation: analyzers
Documentation: analyzers

Change ## to --- for horizontal lines
Update how_to_use_synonyms.md

Wording/clarity/language improvements.
Documentation: add page for using variable in database crawler