Added dependecy on nextras/latte-macros
All templates uses redefine macro
Refactored, introduced new block system (BC break!) [closes #21]

- it is needed to use new macro {redefine} to define own blocks
- block 'row-edit-actions' renamed to 'row-actions-edit'
- cell value isn't translated
Passing $row to row-inner block is independent on row block implementation
Row <tr> tag: removed dependency on grid-primary attribute
Merge branch 'new-block-system'
Added translation for edit link & paginator