[DOC] Adding do Mason Simulator documentation.

git-svn-id: http://svn.seqan.de/seqan/trunk@14455 e6417c60-b987-48fd-844e-b20f0fcc1017
[FIX] several bugs fixed: endless loop for GFF lines without key-value pair, missing quotation of key-value separator, quote all non-integral values in GTF

git-svn-id: http://svn.seqan.de/seqan/trunk@14456 e6417c60-b987-48fd-844e-b20f0fcc1017
[FEATURE] more readable error message in case of differing text files


git-svn-id: http://svn.seqan.de/seqan/trunk@14457 e6417c60-b987-48fd-844e-b20f0fcc1017