Execution saving

the two commits 9c67cd8 and 1763151 from @EnoF should already be in master or? they are in develop though
<a href='#crh-start'></a><a href='#crh-data-%7B%22processed%22%3A%20%5B%22https%3A//github.com/EnoF/con-rest/pull/14%23issuecomment-63805811%22%5D%2C%20%22comments%22%3A%20%7B%22General%20Comment%22%3A%20%7B%22html_url%22%3A%20%22https%3A//github.com/EnoF/con-rest/pull/14%23issuecomment-63805811%22%2C%20%22comments%22%3A%20%5B%7B%22body%22%3A%20%22%40dominikkukacka%20develop%20has%20not%20yet%20been%20merged%20back.%20%22%2C%20%22created_at%22%3A%20%222014-11-20T13%3A16%3A04Z%22%2C%20%22user%22%3A%20%7B%22avatar_url%22%3A%20%22https%3A//avatars.githubusercontent.com/u/1508400%3Fv%3D3%22%2C%20%22html_url%22%3A%20%22https%3A//github.com/EnoF%22%7D%7D%5D%2C%20%22title%22%3A%20%22General%20Comment%22%7D%7D%7D'></a>
<a href='https://www.codereviewhub.com/'><img src='http://www.codereviewhub.com/site/github-bar.png' height=40></a>
- [ ] <a href='#crh-comment-General Comment'></a> <img src='http://www.codereviewhub.com/site/github-remaining.png' height=16 width=60>&nbsp;<b><a href='https://github.com/EnoF/con-rest/pull/14#issuecomment-63805811'>General Comment</a></b>
- <a href='https://github.com/EnoF'><img border=0 src='https://avatars.githubusercontent.com/u/1508400?v=3' height=16 width=16'></a> @dominikkukacka develop has not yet been merged back.


<a href='https://www.codereviewhub.com/EnoF/con-rest/pull/14?mark_as_completed=1'><img src='http://www.codereviewhub.com/site/github-mark-as-completed.png' height=26></a>&nbsp;<a href='https://www.codereviewhub.com/EnoF/con-rest/pull/14?approve=1'><img src='http://www.codereviewhub.com/site/github-approve.png' height=26></a>&nbsp;<a href='https://github.com/EnoF/con-rest/pull/14'><img src='http://www.codereviewhub.com/site/github-refresh.png' height=26></a>
<a href='#crh-end'></a>