Fixed 2 minor spelling errors.
Merge pull request #298 from ThoNohT/patch-1

Fixed 2 minor spelling errors.
Fix creating textures from image data with flipping

When the image data is copied into a texture with flipping set to true
each row has to be copied into the (height - row - 1)th row instead of
the row with the same number. Otherwise it will just create an unflipped
copy.
Merge pull request #299 from reboot/fix_creating_flipped_textures

Fix creating textures from image data with flipping
libobs: Replace fmaxf with inline comparison.

This replaces the call to fmaxf with the equivalent inline comparison
which is a bit faster (at least on linux).
Add obs_source_draw helper function

This function simplifies drawing textures for sources in order to help
reduce boilerplate code.  If a source is a custom drawn source, it will
automatically set up the effect to draw the sprite.  If it's not a
custom drawn source, it will simply draw the sprite as per normal.  If
the source uses a specific color matrix, it will also handle that as
well.
Add config_open_string function

This allows opening ini config data from a string.  Before, it was only
possible to load config from a file.
Allow hex numbers to be used in config data

This allows the 0x* format of hexadecimal integers to be used as config
integers.
obs-ffmpeg: If ffaac is used, change cutoff freq

If FFmpeg's experimental aac encoder is used, this changes the cutoff
frequency to better values in order to try to help make up for the
inherent lack of encoder quality a bit.  If FFmpeg is compiled to use
another encoder by default, these settings will not be applied.
text-freetype2: Do not call wcslen in loop expr.

Doing this in the expression will cause it to execute the function every
time the expression is evaluated, which is needless cycles wasted.
Instead, call wcslen before the loops begin.
text-freetype2: Remove null pointer dereference
Merge pull request #300 from fryshorts/audio-perf

libobs: Replace fmaxf with inline comparison.
obs-outputs: Allow blank RTMP stream key usage

Allows a blank stream key to be used for RTMP streams.
text-freetype2: Fix CR char. rendering as space

On windows, carriage return characters are used along with line feed
characters. When the carriage return is used, it's rendered as a space.
This removes carriage returns from strings before rendering them via
freetype.
linux-xshm: Improve source struct.

This adds documentation to the source struct and moves one bool to the
end to avoid a hole due to alignment.
linux-xshm: Use macro for logging.

This adds a macro to automatically prepend the plugin name to debug
statements like it is done in other plugins.
linux-xshm: Improve geometry update function.

This adds the screen id from the source properties to the source
struct and changes the geometry function to use that value instead
of requiring the settings object of the source.
linux-xshm: Small change for texture update function.

This removes the entering/leaving of the graphics context from this
function and requires the calling code to make sure the context is
present.
linux-xshm: Refactoring of setup code.

This moves the code to start/stop the capture to respectively named
function in order to clean up the update function.
This means that the capture is stopped/started whenever the settings are
changed. While this increases overhead for some settings, this will also
enable future settings that require a full restart of capture process.
linux-xshm: Add server property.

This adds a property to the source properties which lets the user
specify the X server to capture from. Since this is probably something
thats only useful under certain circumstances it is implemented as
an advanced setting which is only shown when the corresponding option
for advanced settings is checked.