Added new empty files: TransacionsTableUpdater.{h|cpp} and TransacionsTableUpdaterTests.cpp.
Using the QApplication in the gui/tests/app and the tests applications.
Moved the TextRed and TextGreen constants into the gui/Tools file.
Moved the setTextColor function into the gui/Tools.
Implemented the TransactionsTableUpdater class.
Refactored the TransactionsTableUpdater class.
Created the PrintTo function for the QColor class.
Made the color declarations extern.
Added the black color.
The PrintTo function for the QColor prints the value of the alpha chanel too.
Updated the TransactionsTableUpdaterTests.
Using the TransactionsTableUpdater in the TransactionsPanel.
Merging with the accountSelected branch. Fixes #24.