Added ResetMouseDragDelta() for iterative dragging operations

Added PushId() GetId() variants that takes string range to avoid user making unnecessary copies

DragFloat() fixed clamping #180

DragFloat() added power parameter for logarithmic drag on both side of zero #180

DragFloat() latch value internally, allows finer control, honor precision settings, slow step with integer works #180

DragInt() step given as float to allow finer control of speed #180

DragFloat() latch value internally, allows finer control, honor precision settings, slow step with integer works #180

Remove stray tabs

Comment on the newly added binary_to_compressed_c.cpp helper program

Fixed prototypes

Added ImFontAtlas::AddFontFromCompressedTTF() helper + binary_to_compressed_c.cpp tool

Examples: DirectX11: tidying up.

ImDrawList: Minor optimisation.

Warning fix.

Examples: OpenGL3: Tweaks (argh, github ui)

Examples: OpenGL3: Tweaks.

Examples: DirectX11: Removed unnecessary vertices conversion and CUSTOMVERTEX types.

ImDrawList: bits of renaming.

Renamed io.MetricsVertices to io.MetricsRenderVertices

ImDrawList: inline AddVtx() calls for profit in highly debug builds

Spacing

ImDrawList: internal refactoring toward a following commit for indexed rendering.

Tweaks.

Fix rounded frames to follow previous change

Renamed AddArcFast() parameter 'tris' to 'filled'

Merge branch 'master' of https://github.com/ocornut/imgui

Revert AddArcFast()->AddArc(), removed modulo from function 200d348

Merge pull request #191 from Extrawurst/patch-2 ...

Fixed unused variable warning.

fix unused variable warning by clang

Renamed ImDrawList::AddArc() to ImDrawList::AddArcFast() for compatibility with future API, and changed 2*PI range from 0..12 to 0..16