[android] fix: Minimum supported Android version raised to 4.0.3 (API15).

android/gradle.properties

@@ -1,4 +1,4 @@
-propMinSdkVersion=9
+propMinSdkVersion=15
 propTargetSdkVersion=22
 propBuildToolsVersion=22.0.1
 propVersionCode=446

android/jni/Android.mk

@@ -54,7 +54,7 @@ ifneq ($(NDK_DEBUG),1)
 endif
 
 
-TARGET_PLATFORM := android-9
+TARGET_PLATFORM := android-15
 
 LOCAL_HEADER_FILES := \
  	com/mapswithme/core/jni_helper.hpp \

android/jni/Application.mk

@@ -1,7 +1,7 @@
 # We can't use clang3.6 for now because it hangs at base/normalize_unicode.cpp compilation.
 # TODO: Replace normalize_unicode.cpp with equal by performance implementation (ask YuraRa about it).
 NDK_TOOLCHAIN_VERSION := clang3.5
-APP_PLATFORM := android-9
+APP_PLATFORM := android-15
 APP_STL := c++_static
 
 # libc++-specific issues: -std=c++11" is turned on by default.

tools/mkspecs/android-clang/qmake.conf

@@ -8,8 +8,8 @@ ANDROID_TARGET_ABI = $$(NDK_ABI)
 # by default use armv7 architecture
 isEmpty( ANDROID_TARGET_ABI ): ANDROID_TARGET_ABI = armeabi-v7a
 
-# Minimum supported platform is Android 2.3
-ANDROID_PLATFORM = android-9
+# Minimum supported platform is Android 4.0.3
+ANDROID_PLATFORM = android-15
 
 GCC_VERSION = 4.8
 # We can't use clang3.6 for now because it hangs at base/normalize_unicode.cpp compilation.

tools/mkspecs/android-g++/qmake.conf

@@ -26,14 +26,14 @@ contains(ANDROID_TARGET_ABI, x86) {
   ANDROID_TARGET_ARCH = x86
   ANDROID_CC_PREFIX = i686-linux-android
   # NOTE: x86 works only from android-9 and above!
-  ANDROID_PLATFORM = android-9
+  ANDROID_PLATFORM = android-15
 } else {
   contains(ANDROID_TARGET_ABI, mips) { 
     NDK_TOOLCHAIN = mipsel-linux-android-$$TOOLCHAIN_VERSION
     ANDROID_TARGET_ARCH = mips
     ANDROID_CC_PREFIX = mipsel-linux-android
     # NOTE: mips works only from android-9 and above!
-    ANDROID_PLATFORM = android-9
+    ANDROID_PLATFORM = android-15
   } else {
     NDK_TOOLCHAIN = arm-linux-androideabi-$$TOOLCHAIN_VERSION
     ANDROID_TARGET_ARCH = arm