Fixes compiler errors and warnings on Mac OS X compile
Merge pull request #154 from asmaloney/fix_compiler_err_and_warn

Fixes compiler errors and warnings on Mac OS X compile
Syntax
Last updates before release (?)
Last bug fix, removal of warnings, etc.
.mac files are now automatically detected as PDMS mac scripts
Bug fix: primitives color couldn't be changed with 'Edit > Colors > Set unique'
+ other minor changes
Version numbers increased for next iteration
+ bug fix (spinboxes of the Bounding-box editing dialog were oversized)
New method: Tools > Clean > Noise filter
(+ bug fix: the "Cancel" button of progress dialog was not visible when compiling with Qt5 on Windows!)
Filter noise dialog files
Syntax
Vector coordinates have been restored in the 2-points label (Point picking tool)
+ TODO list updated
Two fixes for Linux:
- CC startup phase could sometime make the system freeze for a long time
- Ugly console warning (related to DBusMenuExporterPrivate) removed

+ TODO list updated
bug fix (infinite loop in some rare cases when computing distances between two perfectly flat clouds) + typo/syntax fixes
Meshes can now be exported in DXF (Autocad) files
New command line option to handle global shift (-GLOBAL_SHIFT) + global shift related parameters packed in a single structure in qCC_io
Better handling of OpenGL errors when dealing with VBOs
New options (vertical axis) in the Bundler import dialog
- TODO list updated
- history file updated (.php5 extensions replaced by .php)
New mesh quality measurement tools ('Edit > Mesh > Measure Volume' and 'Edit > Mesh > Flag vertices by type')