Major update

added many more components to the About tab.
added module App::Codit::Macro.
new method CoditMDI: docCaseLower.
new method CoditMDI: docCaseUpper.
new method CoditMDI: docFixIndent.
new method CoditMDI: docFixIndentCycle.
new method CoditMDI: docRemoveTrailing.
new method CoditMDI: docRemoveTrailingCycle.
new method CoditMDI: macroGet.
new method CoditMDI: macroInit.
new method CoditMDI: macroList.
new method CoditMDI: macroRemove.
new method CoditMDI: macroRemoveAll.
new method CoditMDI: spaceMacroAdd.
new method CoditMDI: spaceMacroCycle.
new method CoditMDI: spaceMacroRemove.
new option CoditMDI: -doc_show_spaces.
new commands CoditMDI: doc_case_upper, doc_case_lower, doc_fix_indent and doc_remove_trailing.
added their companions in the edit and tool menu.
added some options to the settings dialog and modified it's layout.
plugin Git now functional.
plugin sessions now aware of Console and Git.
modified context menu of the Navigator tree.
the manual pdf is now online.