Update submodules.

bcg729 @ 4edc094b

-Subproject commit d989835b5f954f8a033c28ab4a957b6b8694675b
+Subproject commit 4edc094bcfee08032b6d6fb38cfb00ecf66a9f49

bctoolbox @ 722e1e80

-Subproject commit 912a4c36d371d62e6fa94c16e4009546dbdb02eb
+Subproject commit 722e1e80e85941151dd96101190afa8fd5c0b4b7

belle-sip @ e57cf673

-Subproject commit 54dbbd6f6c52ec371359b45fd5b8b88a6a3b4763
+Subproject commit e57cf673373fc611852289691c46fd56e78ae041

bzrtp @ aab8e0e3

-Subproject commit 916a3bc8773c4230de5813bbb844413864823b8b
+Subproject commit aab8e0e39a99aaf45093d2fa1280bbf70b60a021

cmake-builder @ 3d65304e

-Subproject commit 786385a4132c70ff023b49f6c93ae310993b1dba
+Subproject commit 3d65304e831e81639f8fe88a7c3e54502fbf5679

libmatroska-c @ 12efd631

-Subproject commit 73cb571a49b84c0eb51f450df7a0a967676997a2
+Subproject commit 12efd631fbeebafdeb7a870ad0c1ed7931a2d95f

linphone @ cc856557

-Subproject commit 039dc443dd9fba1d2e519b418cd396592fc55a5e
+Subproject commit cc8565574f203c0bfdf229540b0485d20b72281d

msamr @ c0e69588

-Subproject commit 2fc8b92747439d836789601ea027bb9ab2ed6689
+Subproject commit c0e695887a082f732d99a84463fe3233f56c92e5

msopenh264 @ 629f639c

-Subproject commit f360bded36a7d4a65dacd855d2f13ebc7084e4ef
+Subproject commit 629f639c14394ce8718b5689f806f9b55653e900

mssilk @ c776a4eb

-Subproject commit 730e27277523172171d44cd5588a2311ba349896
+Subproject commit c776a4eb52eaf4bed6ab4a43e36d0a22fe3c7a25

mswebrtc @ 5500882f

-Subproject commit d5e7346fd1ed460091c02d6305e56d6b621abce3
+Subproject commit 5500882f5178f725d97a3e8b5cb97e2f81b595c2

msx264 @ df01c292

-Subproject commit 988c4195807bfd7297121170e3031cdf1340b937
+Subproject commit df01c2928f4ce2217d4ca1a42f9281a665914767