Merge pull request #85 from mgage/ww2.5.1.3

Ww2.5.1.3
Merge pull request #87 from mgage/ww2.5.1.3

Work on themes, Work on knowls
Added inputenc package to conf/snippets/hardcopyPreamble.tex for utf8
support
added German (de) to the list of languages
added maketext calls to allow localization
added maketext call to allow localization
Merge branch 'ww2.5.1.3' of https://github.com/openwebwork/webwork2-dev into myww2.5.1.3
added maketext call around "Help"
Merge pull request #88 from mgage/ww2.5.1.3

Add ability to show hints and solutions as knowls
Merge pull request #89 from mgage/ww2.5.1.3

Set default to always show hints and solutions to professors using knowls...
added missing space in headline
add maketext calls to allow localization
there are still strings that are not localized yet
Merge pull request #92 from heiderich/ww2.5.1.3

Localization
Merge branch 'ww2.5.1.3' of https://github.com/openwebwork/webwork2-dev into ww2.5.1.3