Attachment model clean up: fixed some inconsistent indentation and an inaccurate comment (closes patch #903 by Rocco Stanzione).

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Accept the following formats for the timelog "hours" field: 1h, 1 h, 1 hour, 2 hours, 30m, 30min, 1h30, 1h30m, 1:30.
Also accept 1,5 for 1.5 hour (closes #975). Note that 1.5 is still equal to 1h30 and not 1h50 (#947).

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Add predefined date ranges to the time report in the same way as the details view (closes #972). It nows defaults to 'All time'.
This patch also fixes time report periods (columns) computation.

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Prevent NoMethodError on nil class if custom_fields params is not present in IssuesController#new (#969).

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Queries can be marked as 'For all projects'. Such queries will be available on all projects and on the global issue list (#897, closes #671).
Only admin users can create/edit queries that are public and for all projects.
Note: this change does not allow to save a query from the global issue list. You have to be inside a project but then you can mark the query as 'For all projects'.

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Fixed: migrate_from_trac doesn't import timestamps of wiki and tickets (patch #882 by Andreas Neuhaus slightly edited).

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* Japanese (Satoru Kurashiki)
* Simplified Chinese (chaoqun zou)
* Danish (kim madsen)
* Norwegian (Kai Olav Fredriksen)
* Traditional Chinese (shortie lo)
* German (Sven Schuchmann)

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* do not include subprojects in the issue count of the parent project overview (#939)
* do not include subproject timelogs on the parent project (#848)

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Fixed: when bulk editing, setting "Assigned to" to "nobody" causes an sql error with Postgresql (#935).

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Do not use javascript to hide tabs content on page loading and make tabs work with javascript disabled.

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Fixed: 'This week' condition in filter consider monday as the first day of the week even if language sets otherwise (closes #913).

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* Norwegian added (Kai Olav Fredriksen)
* Finnish updated (Antti Perkiömäki)
* Czech updated (Maxim Krušina)
* Russian updated (Michael Pirogov)
* Polish updated (Mariusz Olejnik)

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Styles added and small fixes to the detailed wiki syntax help.

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Trac importer: prevent validation failure due to the default value when saving the Resolution custom field if it already exists (#869).

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* fixes wiki links with pipe in table (closes #893, #870, #894)
* prevent wiki link matching on multiple lines

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Closes #904 (back_to variable used in patch #641 and in r1277 is no longer defined).

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