[feature] More refactoring and bug fixes

Using Common.Utils.getFontCssStyle function
Updated color conditions & signs
Using Column headerText if defined
Applying alignment
Fixed wrong scroll parameters
Fixed datatables error when logo is last parameter
Merge pull request #67 from alex-deaconu/master

[feature] More refactoring and bug fixes
[feature] More refactoring and bug fixes

Using Common.Utils.getFontCssStyle function
Updated color conditions & signs
Using Column headerText if defined
Applying alignment
Fixed wrong scroll parameters
Fixed datatables error when logo is last parameter
[chore] Refactored js to use global object

Split code into separate files
Removed financial-table-widget.js