Removing duplicate language strings
Remove obsolete strings from Russian language files
Revised README file

- added missing bullet for SourceHgWeb plugin
- updated requirements following release of MantisBT 1.2.16
README.md replace #mantisbt-help by #mantisbt
SVN: use plugin api functions for lang and config

Replace calls to lang_get/config_get/config_set( 'plugin_SourceSVN_*' )
by plugin API calls (i.e. plugin_lang_get, plugin_config_get,
plugin_config_set)
Rename check_svn() to svn_check()

To be consistent with naming of other svn function calls
SVN check should use the command-line options

Using svn_call() instead of svn_binary() method, so that command
arguments defined at plugin level are used in svn_check().

Fixes #81
SVN: bump version
Fix HTML/CSS for account update form
Replace deprecated <acronym> element by <abbr>

Reference: http://www.w3.org/TR/html5/obsolete.html#acronym
Remove calls to helper_alternate_class()
HTML/CSS fixes for manage_config_page.php

Use a form-container div instead of table
HTML/CSS fixes for SourceSVN config

Use divs instead of table rows/cells