Merge pull request #219 from PrimeRevenue/feature/grid_horizontal_scroll

Feature/grid horizontal scroll
When using fixedHeader, ensure that the horizontal scrollbar is visible.
Merge pull request #227 from PrimeRevenue/bug/fixed_horizontal_scrolling

When using fixedHeader, ensure that the horizontal scrollbar is visible.
Fix for grid internal scrolling
Updated message panel for single message issue
Updated message panel for single message issue
Merge branch 'bug/issue_with_long_text_error_messages' of https://github.com/PrimeRevenue/tent into bug/issue_with_long_text_error_messages
Removed commented code
allow string IDs for models with grid
Updated message panel for longer text issue
Merge pull request #230 from PrimeRevenue/bug/issue_with_long_text_error_messages

Bug/issue with long text error messages
Merge pull request #232 from PrimeRevenue/feature/string-model-ids

allow string IDs for models with grid
Fix for horizontal scrolling: hidden interior grid data
unrefactored commit, solves problem with reordering
fixed problems with multiselect and singleselect grid reordering
fixed problem with navigation from single to multiselected grid
Merge pull request #233 from PrimeRevenue/bug/remap_columns

unrefactored commit, solves problem with reordering
Revising collapsible support for horizontal sections.
Moving styles from SCiCustomer
Adding padding for header children