Fix ConcatWithoutSpacesFixer's concat near number
bug #615 Fix ConcatWithoutSpacesFixer's concat near number (fkooman)

This PR was squashed before being merged into the 1.0.x-dev branch (closes #615).

Discussion
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Fix ConcatWithoutSpacesFixer's concat near number

check whether or not the token before and after the concat symbol '.' is a number before removing the whitespace.

Commits
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794bdc2 Fix ConcatWithoutSpacesFixer's concat near number