Merge pull request #1201 from emmanuel-keller/master

Bug fix and improvement
Merge pull request #1205 from emmanuel-keller/master

Fix #1202
Merge pull request #1210 from emmanuel-keller/master

Implements #1207
Merge pull request #1216 from emmanuel-keller/master

Bug fix and improvement
Merge pull request #1222 from emmanuel-keller/master

Bug fix and improvement
Merge pull request #1228 from emmanuel-keller/master

Implements #1225
Documentation
Fix erros
Fix erros
Fix erros
Fix erros
Merge pull request #1232 from emmanuel-keller/master

Fix #1229
Merge pull request #1236 from emmanuel-keller/master

Implements #1233. Few sync improvement in scheduler tasks.
Update crawl_URL.md

Minuscule wording change.
Merge pull request #1239 from emmanuel-keller/master

Integrate maven-notice-plugin
Merge pull request #1248 from emmanuel-keller/master

Fixed #1243
Merge pull request #1259 from emmanuel-keller/master

Bug fix and improvement
Fix typo
Merge branch 'master' of https://github.com/AlexandreToyer/opensearchserver
Delete drupal doc