Titanium 3.5.0 has a warning message for me in the log file

When i look at the the build log (via Help->Studio-View Log File) I can see a bunch of warnings when i use the 3.5.0 build

They are below.

In understand the ANDROID_NDK_NOT_FOUND warning. What do i need to do (please, step by step! I do not know where to begin to resolve this) to fix the warnings about the API being too old.

I get that I should "upgrade" the API. I just don't know

1. what version is the best to upgrade it to for the widest availability
2. How to upgrade it to some given version.

"issues": [
            {
                "id": "ANDROID_NDK_NOT_FOUND",
                "type": "warning",
                "message": "Unable to locate an Android NDK.\nWithout the NDK, you will not be able to build native Android Titanium modules.\nIf you have already downloaded and installed the Android NDK, you can tell Titanium where the Android NDK is located by running '__titanium config android.ndkPath /path/to/android-ndk__', otherwise you can install it by running '__titanium setup android__' or manually downloading from __http://appcelerator.com/android-ndk__."
            },
            {
                "id": "ANDROID_API_TOO_OLD",
                "type": "warning",
                "message": "Android API __Android 2.3.3 (android-10)__ is too old and is no longer supported by Titanium SDK 3.5.0.\nThe minimum supported Android API level by Titanium SDK 3.5.0 is API level 14."
            },
            {
                "id": "ANDROID_API_TOO_OLD",
                "type": "warning",
                "message": "Android API __Android 3.0 (android-11)__ is too old and is no longer supported by Titanium SDK 3.5.0.\nThe minimum supported Android API level by Titanium SDK 3.5.0 is API level 14."
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_2_HVGA\" has a problem:\nUnknown target 'Google Inc.:Google APIs:8' in C:\\Users\\andrew\\.android\\avd\\titanium_2_HVGA.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_2_QVGA\" has a problem:\nUnknown target 'Google Inc.:Google APIs:8' in C:\\Users\\andrew\\.android\\avd\\titanium_2_QVGA.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_2_WVGA800\" has a problem:\nUnknown target 'Google Inc.:Google APIs:8' in C:\\Users\\andrew\\.android\\avd\\titanium_2_WVGA800.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_2_WVGA854\" has a problem:\nUnknown target 'Google Inc.:Google APIs:8' in C:\\Users\\andrew\\.android\\avd\\titanium_2_WVGA854.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_3_HVGA_armeabi-v7a\" has a problem:\nUnknown target 'android-17' in C:\\Users\\andrew\\.android\\avd\\titanium_3_HVGA_armeabi-v7a.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_5_HVGA_armeabi-v7a\" has a problem:\nUnknown target 'android-17' in C:\\Users\\andrew\\.android\\avd\\titanium_5_HVGA_armeabi-v7a.ini"
            },
            {
                "id": "ANDROID_INVALID_EMULATOR",
                "type": "warning",
                "message": "The Android emulator \"titanium_6_HVGA\" has a problem:\nUnknown target 'android-16' in C:\\Users\\andrew\\.android\\avd\\titanium_6_HVGA.ini"
            }
        ],