[DOC] Adding language entities dox page.

git-svn-id: http://svn.seqan.de/seqan/trunk@14646 e6417c60-b987-48fd-844e-b20f0fcc1017
[DOC,INTERNAL] Updating dox system for language entities dox page.

git-svn-id: http://svn.seqan.de/seqan/trunk@14647 e6417c60-b987-48fd-844e-b20f0fcc1017
[DOC,FIX] Fixing small typo in language entities page.

git-svn-id: http://svn.seqan.de/seqan/trunk@14648 e6417c60-b987-48fd-844e-b20f0fcc1017
[FIX,DOC] Translating links in class tparams now.

git-svn-id: http://svn.seqan.de/seqan/trunk@14649 e6417c60-b987-48fd-844e-b20f0fcc1017