Merge pull request #263 from Targoman/tell_credit_value_for_mtcharts_…

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now all of (min, max, value)=-1 for unlimited account

Merge pull request #262 from Targoman/tell_credit_value_for_mtcharts_…

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fix min=-1 for mt charts

Merge pull request #261 from Targoman/tell_credit_value_for_mtcharts_…

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credit value reported as max for progree bar charts

Merge pull request #258 from Targoman/mtcharts

fix a bug in line chart resolution

Merge pull request #257 from Targoman/mtcharts

line chart of mt completed

Merge pull request #256 from Targoman/mtcharts

create coalesce part of query in languageHelper

Merge pull request #255 from Targoman/mtcharts

Mtcharts

Merge pull request #254 from Targoman/fix_mt_accounting

Fix mt accounting

Merge pull request #253 from Targoman/fix_mt_accounting

Fix mt accounting

Merge pull request #252 from Targoman/complete_accounting_usage

Complete accounting usage