Marathi language update

Remote search is aware of useheading option

Added page title to search results in Remote API

Arabic Language Update

when there's not enough space for images, make sure they stay proportional (might be FS#2480)

added minimal RTL print styles (part of FS#2185)

moved plugins' rtl.css to their style.css counterpart (part of FS#2185)

enabled temporary cleanup again

unified unit and integration tests

added scope tests
verify that multiple requests can be made with multiple test methods.

fixed configuration loading and datadir misdirection

initial commit for integration test framework

extended some config options a bit, to make more clear what they do

rearranged the config options

We had a lot of options lumped together under "Advanced Settings". I
introduced two more categories and move a few options to other existing
categories.
I also reordere

rearranged the config options

We had a lot of options lumped together under "Advanced Settings". I
introduced two more categories and move a few options to other existing
categories.
I also reordered the appropriate entries in the source files to make it
easier to find stuff when extending the options.

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changed internal Mailer members from private to protected

made it possible to disable HTML mails in the config

Romanian language update

Marathi language update

Remote search is aware of useheading option

Added page title to search results in Remote API

Arabic Language Update

commit to trigger report generation

when there's not enough space for images, make sure they stay proportional (might be FS#2480)

added minimal RTL print styles (part of FS#2185)

moved plugins' rtl.css to their style.css counterpart (part of FS#2185)