UPGRADE.md in csv2hash-0.7.1 vs UPGRADE.md in csv2hash-0.7.2

@@ -1,42 +1,6 @@
 # Upgrading
 
-# Upgrading from 0.7.0 to 0.7.1
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-nothing
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-# Upgrading from 0.6.8 to 0.7.0
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-nothing
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-# Upgrading from 0.6.7 to 0.6.8
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-nothing
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-# Upgrading from 0.6.6 to 0.6.7
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-nothing
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-# Upgrading from 0.6.5 to 0.6.6
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-nothing
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-# Upgrading from 0.6.4 to 0.6.5
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-nothing
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-# Upgrading from 0.6.3 to 0.6.4
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-nothing
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-# Upgrading from 0.6.2 to 0.6.3
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-nothing
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-# Upgrading from 0.6.1 to 0.6.2
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-nothing
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 # Upgrading from 0.6 to 0.6.1
 
 Change Structure validation rules, MinColumn, MaxColumn are replaced by :min_columns, :max_columns
 
 # Upgrading from 0.5 to 0.6