user can reserve and return a tool
Merge branch 'master' of github.com:audreycarlsen/gnomes
Merge pull request #18 from audreycarlsen/master

Tools
fixed a reserve_tool route
Merge branch 'tools' of github.com:audreycarlsen/gnomes into tools
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Merge pull request #19 from audreycarlsen/tools

Merge pull request #18 from audreycarlsen/master
merge conflicts: