IDEA-99923 Proxy settings: if one credentials dialog is shown do not show another right away
(+ some preparations for automatic tests)
!!! Svn: saving credentials to runtime authentication storage was broken (every Subversion request asked authentication again if it was not stored before)
Merge remote branch 'origin/master'
IDEA-97665 Provide an option to specify fall back fonts

New fallback fonts-aware fonts infrastructure correctly handles Dialog fonts now
handle escape sequences in LowLevelSearchUtil.searchWord() only in UsageSearchContext.IN_STRINGS