Fix errors when Orienteer was reload#2

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Commits on Mar 12, 2017

Change public access to private access
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Commits on Mar 13, 2017

Create OTelegramCustomAttributes - class with custom attributes for Orienteer Telegram module
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Rename method "get" to "getOrCreate"
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Commits on Mar 23, 2017

Delete OTelegramCustomAttribute and use method getOrCreate() of class CustomAttribute
vitalii-honchar
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