[dev] update CI script and README files.

Author: winshining

.travis.yml

@@ -2,10 +2,15 @@ language: c
 
 install:
   - cd ..
-  - wget http://nginx.org/download/nginx-1.12.2.tar.gz
-  - tar zxvf nginx-1.12.2.tar.gz
-  - cd nginx-1.12.2
+  - wget http://nginx.org/download/nginx-1.14.2.tar.gz
+  - tar zxvf nginx-1.14.2.tar.gz
+  - cd nginx-1.14.2
 
 script:
-  - ./configure --add-module=../nginx-http-flv-module && make -j 8
-  - ./configure --add-dynamic-module=../nginx-http-flv-module && make -j 8
+  - ./configure --add-module=../nginx-http-flv-module && make -j 4
+  - ./configure --add-dynamic-module=../nginx-http-flv-module && make -j 4
+
+after_script:
+  - make clean
+  - cd ..
+  - rm -rf "nginx-1.14.2*"

README.CN.md

@@ -298,10 +298,11 @@ nginx-http-flv-module包含了[nginx-rtmp-module](https://github.com/arut/nginx-
     rtmp_socket_dir /tmp;
 
     rtmp {
-        out_queue    4096;
-        out_cork     8;
-        max_streams  128;
-        timeout      15s;
+        out_queue           4096;
+        out_cork            8;
+        max_streams         128;
+        timeout             15s;
+        drop_idle_publisher 15s;
 
         log_interval 5s; #log模块在access.log中记录日志的间隔时间，对调试非常有用
         log_size     1m; #log模块用来记录日志的缓冲区大小

README.md

@@ -299,10 +299,11 @@ The directive `worker_processes` of value 1 is preferable to other values, becau
     rtmp_socket_dir /tmp;
 
     rtmp {
-        out_queue    4096;
-        out_cork     8;
-        max_streams  128;
-        timeout      15s;
+        out_queue           4096;
+        out_cork            8;
+        max_streams         128;
+        timeout             15s;
+        drop_idle_publisher 15s;
 
         log_interval 5s; #interval used by log module to log in access.log, it is very useful for debug
         log_size     1m; #buffer size used by log module to log in access.log

ngx_http_flv_live_module.h

@@ -34,7 +34,6 @@ ngx_rtmp_close_stream_pt http_flv_live_next_close_stream;
 
 typedef struct ngx_http_flv_live_ctx_s {
     ngx_rtmp_session_t  *s;
-    ngx_flag_t           flv_live;
     ngx_flag_t           header_sent;
 
     ngx_str_t            app;