Work on #1035
Merge pull request #1046 from AlexandreToyer/master

Documentation: add page for using variable in database crawler
Merge pull request #1047 from AlexandreToyer/master

Documentation: add new page in table of contents
Documentation: fix typo
Update SUMMARY.md

Very minor language fixes
Update how_to_use_analyzers.md

Language and clarity fix. I may have botched rewriting line 25, since it was unclear - please double-check.
Implements #1016
Merge pull request #1050 from emmanuel-keller/master

Bug fix and improvement
Implements #1053
Fix library test issue
Working on #1053
Update how_to_use_analyzers.md

Fixed a potentially confusing sentence.
Boostrap becomes the default template
Merge pull request #1059 from emmanuel-keller/master

Bug fixes and improvement
- Library upgrade
- Fixes non deletion of cache files in the temp directory
Implements #1060
Conflicts:
	src/main/java/com/jaeksoft/searchlib/filter/AuthFilter.java
Merge pull request #1063 from emmanuel-keller/master

Bug fixes and improvement
#Implements #1064.
The default header names are:
X-OSS-REMOTE-USER: the login of the user
X-OSS-REMOTE-GORUPS: User's groups separated by comma
Implements #1060
Work in progress on #1060