build in root
removed identical branches for nsign handling

Closes CID#75607
use floating-point division

Closes CID#75610, CID#75613
avoid assignments to unused variables

Close CID#75611,CID#75612,CID#75614
nicer indentation
use floating-point division

Closes. CID#75615

actually, i'm not entirely sure whether this is the correct thing to do
(e.g., do we really want floating-point division?)
modelOBJ: close FILE when returning early

to fix ressource leak.

Closes: CID#53708
removed dead code

Closes: CID#75609
script to create tgz from install-data
reformatting by 'travis setup'
upload autobuilds to github/releases
close FILE on early return (again)

Closes: CID#53708
fixed tar command: needs a path
disabled travis-deploy for now

have to read a little bit about github-releases
before i can use this...
Merge branch 'master' of https://github.com/umlaeute/Gem

Conflicts:
	.travis.yml
	build/travis-ci/build.sh
enalbe OSX build, update name/github login