Do not accept aggregate packages.

Do not accept aggregate packages.

Conditions of aggregate packages:
1. The name includes "aggregate"
2. The package has a source file named "_aggregate"

Squashed commit of the following:

commit c519222bcdc7e8aa0fc87502ee57f0786cefa6c4
Author: Junghyun Kim <jh0822.kim@samsung.com>
Date:   Tue Nov 1 20:19:17 2016 +0900

    FIXED: typo.

    Change-Id: I73582f80e790616a512ecae323cd208c4345c8c9
    Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>
commit 83cedfca3da74e0c2c687fea2513d64829ce20c9
Author: Junghyun Kim <jh0822.kim@samsung.com>
Date:   Tue Nov 1 20:06:15 2016 +0900

    Do not accept "*aggregate*" packages having "_aggregate" file.

    It is more general approach to ignore aggregate packages.

    Reviewed by Chan Lee <chan45.lee@samsung.com>

    Change-Id: I71f0d1b2af1da93b73ca94059dfe630163d03388
    Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>
commit 6ef788191edfd86172b5dafa6f7c0af486fe2021
Author: Junghyun Kim <jh0822.kim@samsung.com>
Date:   Mon Sep 12 09:16:23 2016 +0900

    indentation modified.

    Change-Id: I874d5f90c8282e019786533773861f409729a394
    Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>
commit 3ae8401ebde101cecabf2d70b63e4713973b17a3
Author: Junghyun Kim <jh0822.kim@samsung.com>
Date:   Thu Sep 8 13:50:22 2016 +0900

    "import re" added.

    Change-Id: I8f4a5ebcf8a54a5ddd1b3fe661055616fa4e6bb6
    Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>
commit 5938c43829bb770a1d09f8b219a36c0f05bc0100
Author: Junghyun Kim <jh0822.kim@samsung.com>
Date:   Thu Sep 8 11:26:40 2016 +0900

    Remove *_aggregate packages before accepting OBS SR.

    Change-Id: I4321acf02212310bcf8ea75d98883cec7e253131
    Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>
Change-Id: I289ae301084510aab7e0c9aadfa2eb4e6be83319
Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>