move filtering into the database

optionally all accounts can now use the same generic ssh username. does not work for accounts sharing their key with another account. ...

based on work Fabian Markert's work.

small cleanup

(refs #1167)Fix commit information in the branch view

(refs #1172)Fix: Some of issue filters has been impossible to turn off

(refs #1178)Check group member isn't group account

Wrap the PostgreSQL JDBC driver to convert the returning column names to lower case

Fix GROUP BY clause for PostgreSQL support

Use topological sorting to sort tables by dependency

Add error checking for data import

Specify charset of XML file

Export supports both of XML and SQL

Export / Import as XML

Remove PLUGIN table from export target

Fix solidbase plugin support

Update pre-condition checking

Merge branch 'master' into mysql_support ...

# Conflicts:
#	src/main/resources/update/3_13.sql
#	src/main/scala/gitbucket/core/servlet/AutoUpdate.scala

Add Version 3.14

Merge branch 'webhook-content-type' of https://github.com/McFoggy/gitbucket into McFoggy-webhook-content-type ...

# Conflicts:
#	src/main/scala/gitbucket/core/service/WebHookService.scala
#	src/main/twirl/gitbucket/core/settings/edithooks.scala.html

Fix SQL for PostgreSQL

Fixup

Fix table order in the exported sql file

Fix for PostgreSQL support

Add PostgreSQL support

Data import is available

Working for data import tool

Add data import form

Database export tool is available

Start to implement the database export tool

Start to implement the database export tool