treat non-existing files as success on delete

added tests for io_rmdir

Fix indexing numeric words in page contents

Since a8dba4523d2ecd09dd69a68a36673eaf5c009c57 the search index didn't
properly index numeric words anymore, instead they were added as new
words to the w

Fix indexing numeric words in page contents

Since a8dba4523d2ecd09dd69a68a36673eaf5c009c57 the search index didn't
properly index numeric words anymore, instead they were added as new
words to the word list each time they were indexed, leading to an
ever-increasing index size.

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crlf 2 lf whitespace fixes

Fix sending empty and duplicated headers, FS#2887

This fixes sending empty and duplicated To/Cc/Bcc, Subject and From
headers in the additional headers. The To-header in the additional
headers preve

Fix sending empty and duplicated headers, FS#2887

This fixes sending empty and duplicated To/Cc/Bcc, Subject and From
headers in the additional headers. The To-header in the additional
headers prevented mail sending on some systems.

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FS#1833 (b)
Prevent table entry syntax swallowing multiple preceeding blank lines
(a) this shouldn't be necessary, blank lines are handled by paragraph
processing
(b) avoids issues with greedy ta

FS#1833 (b)
Prevent table entry syntax swallowing multiple preceeding blank lines
(a) this shouldn't be necessary, blank lines are handled by paragraph
processing
(b) avoids issues with greedy table syntax competing with plugins

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retrieve revisions around some given revisions

With unit tests

One case is not yet fixed:
when rev1 is first rev from changelog, only $max/2 revisions are
retrieved, but it should retrieve $max rev

retrieve revisions around some given revisions

With unit tests

One case is not yet fixed:
when rev1 is first rev from changelog, only $max/2 revisions are
retrieved, but it should retrieve $max revisions.

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bugfix and reformatting changelog. small chunck unittests

Improve changelog reading. Inclusive unittests for chunks smaller than changelog lines.

add test for empty rev in ml() and wl()

add test getlastrevisionat

improve unittests getrelativerevision. Bit code reformatting unit tests

fix not updated call, renaming

refactor PageRevisionLog into Media- and PageChangelog extending Changelog

Improved isCurrentRevision(), tests included

Add unit tests for getRelativerevision

Update changelog unit tests

Fix the media usage index to include local links

ensure locale is set back to the original value

skip FS#2867 test if \s doesn't match \xA0 after attempting to change the locale

unittests for auth_loadACL

make sure HTTP test uses HTTP only and doesn't get redirected

more verbosity in test case

escaped another $ in mailer test

add tests for usernames with 2 & 3 byte utf8 characters