* Fix a bug when full file name and path are passed to FOOTPRINT_INFO::
ReadFootprintFiles() which I created in bug fix lp:593989.
* Fix a wxString debug assertion in EDA_APP::InitEDA_Appl() when the KICAD
environment variable is defined as an empty string.
* Add error dialog when libraries cannot be found in system search path
when loading footprint using the select footprint dialog.
* Add footprint library name column to the EDA_LIST_DIALOG when selecting
footprints from the list.
* Allow reading all columns from the selected row in EDA_LIST_DIALOG.
* Remove redundant sort from EDA_LIST_DIALOG constructor
* Add library name member variable and accessors to FOOTPRINT_INFO.
* Make headers translatable for Eeschema select component from list dialog.
* Add some helper methods to FPID for identifying the FPID type and validity.
* Remove a bunch of trailing whitespace and add missing license comments.
* Fixed a bug in PCB_EDIT_FRAME::loadFootprints when no footprint libraries
are found when attempting to load footprints.
* Add a warning to PCB_EDIT_FRAME::loadFootprints to inform the user when
a footprint library file cannot be found in any of the standard library
search paths.
* Changed FOOTPRINT_INFO::m_padCount to unsigned to prevent signed/unsigned
comparison compiler warnings.
* Put NestedSpace() function in netlist_reader.cpp inside conditional debug
build statement to prevent warning in release builds.
* Use version of DateAndTime that returns a wxString and delete the
version that takes a char* as it is no longer required.
* Merge StrNumICmp() and StrLenNumICmp() into StrLenNumCmp() to create a
single function for comparing strings with integers and remove a lot
of duplicate code.
* Remove unused strupper from string.cpp.
* Use wxArrayString for sorting the EDA_LIST_DIALOG contents.