Add empty "if" step through dropdown "add step" menu

[waj]

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• Imported from BitBucket: https://bitbucket.org/instedd/mbuilder/issue/173
• Originally Reported By: Nicolas di Tada
• Originally Created At: 2014-09-30 19:57:54+00:00

[waj]

fixes #173 Add empty "if" step through dropdown "add step" menu proper align dropdown options

→ <<cset 511fa2f4c4fa>>

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• Original comment by Brian Cardiff on 2014-09-30 19:57:54+00:00

[pmallol]

Implemented ok in version 1.2-pre2