Refactor: Internals: Removing new lines from NavUpdate solely because I couldn't find another way to get a neat diff/patch when moving it. (part 4) (#2036, #787)

Refactor: Internals: Moved Navigation functions in imgui.cpp in their own section (extracted some code out of NavUpdate()). (part 3) (#2036, #787)

Refactor: Internals: Moved Navigation functions in imgui.cpp in their own section. (part 2) (#2036, #787)

Refactor: Internals: Moved Navigation functions in imgui.cpp in their own section. (part 1) (#2036, #787)

Refactor: Internals: Moved Logging functions in imgui.cpp in their own section. (#2036)

Refactor: Internals: Moved Settings functions in imgui.cpp in their own section. (#2036)

Refactor: Internals: Moved various functions in imgui.cpp (#2036)

Refactor: Moved README, ChangeLog, TODO files to docs/ folder + update Changelog. (#2036)

Refactor: Moved Slider/Drag/Input functions + support DataType stuff from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved InputText functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved ColorEdit/ColorPicker/ColorButton/etc. functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Tree/Selectable functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Plot/Value functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Menu functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Combo/ListBox functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Button/Image/Checkbox/RadioButton/Bullet/ProgressBar functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Moved Text functions from imgui.cpp to imgui_widgets.cpp (#2036)

Refactor: Added imgui_widgets.cpp headers to easily merge in the functions in all our branches. (#2036)

Refactor: Added empty imgui_widgets.cpp + updated project files / makefiles etc. accordingly (#2036)

Version 1.64 WIP

Changelog tweaks/typos

Version 1.63

Changelog: fixed inconsistent white space before list items.

Internals: Tidying up, moving helpers to imgui_internal.h (in prevision of 1.64 refactor)

Reordered some declarations in imgui.h (in prevision of 1.64 refactor)

ColorEdit4: Fixed a bug when text input or drag and drop leading to unsaturated HSL values would erroneously alter the resulting color. (#2050)

Internals: Merged some changes to facilitate 1D->2D transition for some elements, and merging the stack layout PR (#846)

Travis: Fix (still not sure there is a way to test those files). (#1044)

Examples: Vulkan: Minor tweaks.

Travis: Added xcode build for the OSX+Metal example. (#1044) [@petmac]