use large/medium/similar to define scene change result
fix the condition of scene change flag and comments
fix dump file issue
remove BASE_MB related code
Avoid clobbering the registers q4-q7 in DeblockingBSCalcEnc_neon

Remap q5 to q8, q6 to q9, q7 to q10 and q8 to q11, and push
q4 to the stack.

This was missed previously since the codec unittest doesn't
test encoding with loop filter enabled yet.
Add encoder tests with deblocking and/or denoising

This increases the coverage of assembly routines (and encoder
features in general) tested by the codec unit test.
Format x86 assembly constants in a yasm compatible manner

This is similar to what was done in a6463be0cc7 - yasm requires
these constants to have a zero after $.
Merge pull request #505 from mstorsjo/x86-asm-constants

Format x86 assembly constants in a yasm compatible manner
Merge pull request #490 from ruil2/encoder_slice_auto

fix dump file issue
Indent all WELS_ASM_FUNC_BEGIN properly

By having all of them start at the start of the line, the code
is more consistent and readable.
Merge pull request #509 from mstorsjo/fix-arm-asm-macro-indentation

Indent all WELS_ASM_FUNC_BEGIN properly
Use the SIGN_EXTENSION macro where possible

This shortens the x86 assembly by 134 lines in total.
Merge pull request #510 from huili2/remove_basemb

remove BASE_MB related code
Merge pull request #501 from mstorsjo/neon-register-backup

Avoid clobbering the registers q4-q7 in DeblockingBSCalcEnc_neon
Merge pull request #496 from mstorsjo/use-sign-extend-macro

Use the SIGN_EXTENSION macro where possible
Merge pull request #483 from volvet/develop_b

use large/medium/similar to define scene change result
Merge pull request #503 from mstorsjo/encoder-test-coverage

Add encoder tests with deblocking and/or denoising
Remove commented out code for old, 32-bit only x86 assembly function prologues/epilogues
Merge pull request #515 from mstorsjo/remove-commented-x86-asm

Remove commented out code for old, 32-bit only x86 assembly function prologues/epilogues
Merge remote-tracking branch 'upstream/master' into travis.android