#272: Fixes for dict substitution

[USSX-Hares]

Closes #272

Root Cause

In ConfigTreePatser.postParse(), where the value is put to the resulting dict, the key was not split. Thus, ConfigTree.put() was overwriting any values.

Changes

• Added tests for that case
• ConfigTreePatser.postParse() now splits the key before calling ConfigTree.put()

[coveralls]

Coverage decreased (-1.7%) to 94.413% when pulling de87e8db9ddcc5a73b12ceef725a8e7391d9039b on USSX-Hares:bug/272-dict-substitution-fix into be660deb6d6a5a175d384792e208fd39986758ea on chimpler:master.

[coveralls]

Coverage decreased (-1.7%) to 94.413% when pulling de87e8db9ddcc5a73b12ceef725a8e7391d9039b on USSX-Hares:bug/272-dict-substitution-fix into be660deb6d6a5a175d384792e208fd39986758ea on chimpler:master.

[darthbear]

Thank you for your PR @USSX-Hares !