Update ExtendAnimation attributes docs

    <!-- Defines the ExtendAnimation used to extend windows during animations -->

    <declare-styleable name="ExtendAnimation">

        <!-- Defines the amount a window should be extended outward from the left at

             the start of the animation. -->

        <attr name="fromExtendLeft" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the top at

             the start of the animation. -->

        <attr name="fromExtendTop" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the right at

             the start of the animation. -->

        <attr name="fromExtendRight" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the bottom at

             the start of the animation. -->

        <attr name="fromExtendBottom" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the left by

             the end of the animation by transitioning from the fromExtendLeft amount. -->

        <attr name="toExtendLeft" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the top by

             the end of the animation by transitioning from the fromExtendTop amount. -->

        <attr name="toExtendTop" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the right by

             the end of the animation by transitioning from the fromExtendRight amount. -->

        <attr name="toExtendRight" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the bottom by

             the end of the animation by transitioning from the fromExtendBottom amount. -->

        <attr name="toExtendBottom" format="float|fraction" />

        <!-- Defines the amount a window should be extended outward from the left at the start of

             the animation in an absolute dimension (interpreted as pixels if no dimension unit is

             provided) or as a percentage of the animation target's width. -->

        <attr name="fromExtendLeft" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the top at the start of

             the animation in an absolute dimension (interpreted as pixels if no dimension unit is

             provided) or as a percentage of the animation target's height. -->

        <attr name="fromExtendTop" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the right at the start of

             the animation in an absolute dimension (interpreted as pixels if no dimension unit is

             provided) or as a percentage of the animation target's width. -->

        <attr name="fromExtendRight" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the bottom at the start of

             the animation in an absolute dimension (interpreted as pixels if no dimension unit is

             provided) or as a percentage of the animation target's height. -->

        <attr name="fromExtendBottom" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the left by the end of the

             animation by transitioning from the fromExtendLeft amount in an absolute dimension

             (interpreted as pixels if no dimension unit is provided) or as a percentage of the

             animation target's width. -->

        <attr name="toExtendLeft" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the top by the end of the

             animation by transitioning from the fromExtendTop amount in an absolute dimension

             (interpreted as pixels if no dimension unit is provided) or as a percentage of the

             animation target's height. -->

        <attr name="toExtendTop" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the right by the end of

             the animation by transitioning from the fromExtendRight amount in an absolute

             dimension (interpreted as pixels if no dimension unit is provided) or as a percentage

             of the animation target's width. -->

        <attr name="toExtendRight" format="float|fraction|dimension" />

        <!-- Defines the amount a window should be extended outward from the bottom by the end of

             the animation by transitioning from the fromExtendBottom amount in an absolute

             dimension (interpreted as pixels if no dimension unit is provided) or as a percentage

             of the animation target's height. -->

        <attr name="toExtendBottom" format="float|fraction|dimension" />

    </declare-styleable>

    <declare-styleable name="LayoutAnimation">