Implement direct message prioritization

Merge !76 (merged) first.

SonarQube analysis reported 8 issues

• ⛔ 1 blocker
• 🚫 2 critical
• 🔽 3 minor
• ℹ 2 info

1. ⛔ Add some tests to this class. 📘
2. 🚫 Make this class "Serializable". 📘
3. 🚫 Make this class "Serializable". 📘
4. 🔽 Drop this interface in favor of "java.util.function.BiFunction<Collection,List,Collection>". 📘
5. 🔽 Drop this interface in favor of "java.util.function.Function<Collection,List>". 📘
6. 🔽 Add a 'package-info.java' file to document the 'prioritizers' package 📘
7. ℹ Complete the task associated to this TODO comment. 📘
8. ℹ Complete the task associated to this TODO comment. 📘

mentioned in merge request !86 (merged)

mentioned in merge request !76 (merged)

added 121 commits

• c297efb2...481bf2cb - 120 commits from branch master
• dbcbc226 - Merge remote-tracking branch 'remotes/origin/master' into feature-#305-direct-message-prio

Compare with previous version

SonarQube analysis reported 8 issues

• ⛔ 1 blocker
• 🚫 2 critical
• 🔽 3 minor
• ℹ 2 info

1. ⛔ Add some tests to this class. 📘
2. 🚫 Make this class "Serializable". 📘
3. 🚫 Make this class "Serializable". 📘
4. 🔽 Drop this interface in favor of "java.util.function.BiFunction<Collection,List,Collection>". 📘
5. 🔽 Drop this interface in favor of "java.util.function.Function<Collection,List>". 📘
6. 🔽 Add a 'package-info.java' file to document the 'prioritizers' package 📘
7. ℹ Complete the task associated to this TODO comment. 📘
8. ℹ Complete the task associated to this TODO comment. 📘

added 37 commits

• dbcbc226...11b66319 - 36 commits from branch master
• 61e08379 - Merge remote-tracking branch 'remotes/origin/master' into feature-#305-direct-message-prio

Compare with previous version

added Needs Review label

SonarQube analysis reported 3 issues

• 🚫 2 critical
• 🔽 1 minor

1. 🚫 Make this class "Serializable". 📘
2. 🚫 Make this class "Serializable". 📘
3. 🔽 Add a 'package-info.java' file to document the 'prioritizers' package 📘

added 1 commit

• 62d4f147 - Make sorters serializable

Compare with previous version

SonarQube analysis reported 1 issue

• 🔽 1 minor

1. 🔽 Add a 'package-info.java' file to document the 'prioritizers' package 📘

added Needs Changes Needs information from dev and removed Needs Review labels

added Needs Review and removed Needs Changes Needs information from dev labels

resolved all discussions

merged

mentioned in commit 4adb5d50