internal: replace css class for better error display
internal: add enlarged avatar image when pointing on small avatar
remove unused configuration
default run configuration
internal: add method for getting avatar by string identifier
internal: correct cache construction, add cache expiration in 1 day
internal: remove quotation
internal: support avatar loading by string identifier in AvatarService
internal: support Tumblr avatar receiving by string identifier
internal: support SysMailRuAvatarSupplier to receive avatar by string identifier
internal: fix null pointer
internal: flush id cache
internal: inject javascript through regex to fix minimized version
bugfix: css overrides in tests
internal: make image width automatic