[FEATURE] Functions copyGaps() and copyClipping() for Gaps class.

git-svn-id: http://svn.seqan.de/seqan/trunk@14450 e6417c60-b987-48fd-844e-b20f0fcc1017
[DOC] Improvded documentation and demo for extendAlignment.

git-svn-id: http://svn.seqan.de/seqan/trunk@14451 e6417c60-b987-48fd-844e-b20f0fcc1017
[FIX,INTERNAL,DOC] fix minor warnings, errors and doc

* fix signed/unsigned warning for test
* fix build error on VisualStudio (and warnings from old gcc)
* change an enum from allcaps to CamelCase



git-svn-id: http://svn.seqan.de/seqan/trunk@14452 e6417c60-b987-48fd-844e-b20f0fcc1017